MathTrig.php in Loft Data Grids 6.2

File

vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation/MathTrig.php

<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * @category	PHPExcel
 * @package		PHPExcel_Calculation
 * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license		http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version		##VERSION##, ##DATE##
 */

/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {

  /**
   * @ignore
   */
  define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
  require PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php';
}

/**
 * PHPExcel_Calculation_MathTrig
 *
 * @category	PHPExcel
 * @package		PHPExcel_Calculation
 * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Calculation_MathTrig {

  //
  //	Private method to return an array of the factors of the input value
  //
  private static function _factors($value) {
    $startVal = floor(sqrt($value));
    $factorArray = array();
    for ($i = $startVal; $i > 1; --$i) {
      if ($value % $i == 0) {
        $factorArray = array_merge($factorArray, self::_factors($value / $i));
        $factorArray = array_merge($factorArray, self::_factors($i));
        if ($i <= sqrt($value)) {
          break;
        }
      }
    }
    if (!empty($factorArray)) {
      rsort($factorArray);
      return $factorArray;
    }
    else {
      return array(
        (int) $value,
      );
    }
  }

  //	function _factors()
  private static function _romanCut($num, $n) {
    return ($num - $num % $n) / $n;
  }

  //	function _romanCut()

  /**
   * ATAN2
   *
   * This function calculates the arc tangent of the two variables x and y. It is similar to
   *		calculating the arc tangent of y ÷ x, except that the signs of both arguments are used
   *		to determine the quadrant of the result.
   * The arctangent is the angle from the x-axis to a line containing the origin (0, 0) and a
   *		point with coordinates (xCoordinate, yCoordinate). The angle is given in radians between
   *		-pi and pi, excluding -pi.
   *
   * Note that the Excel ATAN2() function accepts its arguments in the reverse order to the standard
   *		PHP atan2() function, so we need to reverse them here before calling the PHP atan() function.
   *
   * Excel Function:
   *		ATAN2(xCoordinate,yCoordinate)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$xCoordinate		The x-coordinate of the point.
   * @param	float	$yCoordinate		The y-coordinate of the point.
   * @return	float	The inverse tangent of the specified x- and y-coordinates.
   */
  public static function ATAN2($xCoordinate = NULL, $yCoordinate = NULL) {
    $xCoordinate = PHPExcel_Calculation_Functions::flattenSingleValue($xCoordinate);
    $yCoordinate = PHPExcel_Calculation_Functions::flattenSingleValue($yCoordinate);
    $xCoordinate = $xCoordinate !== NULL ? $xCoordinate : 0.0;
    $yCoordinate = $yCoordinate !== NULL ? $yCoordinate : 0.0;
    if ((is_numeric($xCoordinate) || is_bool($xCoordinate)) && is_numeric($yCoordinate) || is_bool($yCoordinate)) {
      $xCoordinate = (double) $xCoordinate;
      $yCoordinate = (double) $yCoordinate;
      if ($xCoordinate == 0 && $yCoordinate == 0) {
        return PHPExcel_Calculation_Functions::DIV0();
      }
      return atan2($yCoordinate, $xCoordinate);
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function ATAN2()

  /**
   * CEILING
   *
   * Returns number rounded up, away from zero, to the nearest multiple of significance.
   *		For example, if you want to avoid using pennies in your prices and your product is
   *		priced at $4.42, use the formula =CEILING(4.42,0.05) to round prices up to the
   *		nearest nickel.
   *
   * Excel Function:
   *		CEILING(number[,significance])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$number			The number you want to round.
   * @param	float	$significance	The multiple to which you want to round.
   * @return	float	Rounded Number
   */
  public static function CEILING($number, $significance = NULL) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    $significance = PHPExcel_Calculation_Functions::flattenSingleValue($significance);
    if (is_null($significance) && PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC) {
      $significance = $number / abs($number);
    }
    if (is_numeric($number) && is_numeric($significance)) {
      if ($number == 0.0 || $significance == 0.0) {
        return 0.0;
      }
      elseif (self::SIGN($number) == self::SIGN($significance)) {
        return ceil($number / $significance) * $significance;
      }
      else {
        return PHPExcel_Calculation_Functions::NaN();
      }
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function CEILING()

  /**
   * COMBIN
   *
   * Returns the number of combinations for a given number of items. Use COMBIN to
   *		determine the total possible number of groups for a given number of items.
   *
   * Excel Function:
   *		COMBIN(numObjs,numInSet)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	int		$numObjs	Number of different objects
   * @param	int		$numInSet	Number of objects in each combination
   * @return	int		Number of combinations
   */
  public static function COMBIN($numObjs, $numInSet) {
    $numObjs = PHPExcel_Calculation_Functions::flattenSingleValue($numObjs);
    $numInSet = PHPExcel_Calculation_Functions::flattenSingleValue($numInSet);
    if (is_numeric($numObjs) && is_numeric($numInSet)) {
      if ($numObjs < $numInSet) {
        return PHPExcel_Calculation_Functions::NaN();
      }
      elseif ($numInSet < 0) {
        return PHPExcel_Calculation_Functions::NaN();
      }
      return round(self::FACT($numObjs) / self::FACT($numObjs - $numInSet)) / self::FACT($numInSet);
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function COMBIN()

  /**
   * EVEN
   *
   * Returns number rounded up to the nearest even integer.
   * You can use this function for processing items that come in twos. For example,
   *		a packing crate accepts rows of one or two items. The crate is full when
   *		the number of items, rounded up to the nearest two, matches the crate's
   *		capacity.
   *
   * Excel Function:
   *		EVEN(number)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$number			Number to round
   * @return	int		Rounded Number
   */
  public static function EVEN($number) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    if (is_null($number)) {
      return 0;
    }
    elseif (is_bool($number)) {
      $number = (int) $number;
    }
    if (is_numeric($number)) {
      $significance = 2 * self::SIGN($number);
      return (int) self::CEILING($number, $significance);
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function EVEN()

  /**
   * FACT
   *
   * Returns the factorial of a number.
   * The factorial of a number is equal to 1*2*3*...* number.
   *
   * Excel Function:
   *		FACT(factVal)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$factVal	Factorial Value
   * @return	int		Factorial
   */
  public static function FACT($factVal) {
    $factVal = PHPExcel_Calculation_Functions::flattenSingleValue($factVal);
    if (is_numeric($factVal)) {
      if ($factVal < 0) {
        return PHPExcel_Calculation_Functions::NaN();
      }
      $factLoop = floor($factVal);
      if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC) {
        if ($factVal > $factLoop) {
          return PHPExcel_Calculation_Functions::NaN();
        }
      }
      $factorial = 1;
      while ($factLoop > 1) {
        $factorial *= $factLoop--;
      }
      return $factorial;
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function FACT()

  /**
   * FACTDOUBLE
   *
   * Returns the double factorial of a number.
   *
   * Excel Function:
   *		FACTDOUBLE(factVal)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$factVal	Factorial Value
   * @return	int		Double Factorial
   */
  public static function FACTDOUBLE($factVal) {
    $factLoop = PHPExcel_Calculation_Functions::flattenSingleValue($factVal);
    if (is_numeric($factLoop)) {
      $factLoop = floor($factLoop);
      if ($factVal < 0) {
        return PHPExcel_Calculation_Functions::NaN();
      }
      $factorial = 1;
      while ($factLoop > 1) {
        $factorial *= $factLoop--;
        --$factLoop;
      }
      return $factorial;
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function FACTDOUBLE()

  /**
   * FLOOR
   *
   * Rounds number down, toward zero, to the nearest multiple of significance.
   *
   * Excel Function:
   *		FLOOR(number[,significance])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$number			Number to round
   * @param	float	$significance	Significance
   * @return	float	Rounded Number
   */
  public static function FLOOR($number, $significance = NULL) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    $significance = PHPExcel_Calculation_Functions::flattenSingleValue($significance);
    if (is_null($significance) && PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC) {
      $significance = $number / abs($number);
    }
    if (is_numeric($number) && is_numeric($significance)) {
      if ($significance == 0.0) {
        return PHPExcel_Calculation_Functions::DIV0();
      }
      elseif ($number == 0.0) {
        return 0.0;
      }
      elseif (self::SIGN($number) == self::SIGN($significance)) {
        return floor($number / $significance) * $significance;
      }
      else {
        return PHPExcel_Calculation_Functions::NaN();
      }
    }
    else {
      return PHPExcel_Calculation_Functions::VALUE();
    }
  }

  //	function FLOOR()

  /**
   * GCD
   *
   * Returns the greatest common divisor of a series of numbers.
   * The greatest common divisor is the largest integer that divides both
   *		number1 and number2 without a remainder.
   *
   * Excel Function:
   *		GCD(number1[,number2[, ...]])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed	$arg,...		Data values
   * @return	integer					Greatest Common Divisor
   */
  public static function GCD() {
    $returnValue = 1;
    $allValuesFactors = array();

    // Loop through arguments
    foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $value) {
      if (!is_numeric($value)) {
        return PHPExcel_Calculation_Functions::VALUE();
      }
      elseif ($value == 0) {
        continue;
      }
      elseif ($value < 0) {
        return PHPExcel_Calculation_Functions::NaN();
      }
      $myFactors = self::_factors($value);
      $myCountedFactors = array_count_values($myFactors);
      $allValuesFactors[] = $myCountedFactors;
    }
    $allValuesCount = count($allValuesFactors);
    if ($allValuesCount == 0) {
      return 0;
    }
    $mergedArray = $allValuesFactors[0];
    for ($i = 1; $i < $allValuesCount; ++$i) {
      $mergedArray = array_intersect_key($mergedArray, $allValuesFactors[$i]);
    }
    $mergedArrayValues = count($mergedArray);
    if ($mergedArrayValues == 0) {
      return $returnValue;
    }
    elseif ($mergedArrayValues > 1) {
      foreach ($mergedArray as $mergedKey => $mergedValue) {
        foreach ($allValuesFactors as $highestPowerTest) {
          foreach ($highestPowerTest as $testKey => $testValue) {
            if ($testKey == $mergedKey && $testValue < $mergedValue) {
              $mergedArray[$mergedKey] = $testValue;
              $mergedValue = $testValue;
            }
          }
        }
      }
      $returnValue = 1;
      foreach ($mergedArray as $key => $value) {
        $returnValue *= pow($key, $value);
      }
      return $returnValue;
    }
    else {
      $keys = array_keys($mergedArray);
      $key = $keys[0];
      $value = $mergedArray[$key];
      foreach ($allValuesFactors as $testValue) {
        foreach ($testValue as $mergedKey => $mergedValue) {
          if ($mergedKey == $key && $mergedValue < $value) {
            $value = $mergedValue;
          }
        }
      }
      return pow($key, $value);
    }
  }

  //	function GCD()

  /**
   * INT
   *
   * Casts a floating point value to an integer
   *
   * Excel Function:
   *		INT(number)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$number			Number to cast to an integer
   * @return	integer	Integer value
   */
  public static function INT($number) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    if (is_null($number)) {
      return 0;
    }
    elseif (is_bool($number)) {
      return (int) $number;
    }
    if (is_numeric($number)) {
      return (int) floor($number);
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function INT()

  /**
   * LCM
   *
   * Returns the lowest common multiplier of a series of numbers
   * The least common multiple is the smallest positive integer that is a multiple
   * of all integer arguments number1, number2, and so on. Use LCM to add fractions
   * with different denominators.
   *
   * Excel Function:
   *		LCM(number1[,number2[, ...]])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed	$arg,...		Data values
   * @return	int		Lowest Common Multiplier
   */
  public static function LCM() {
    $returnValue = 1;
    $allPoweredFactors = array();

    // Loop through arguments
    foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $value) {
      if (!is_numeric($value)) {
        return PHPExcel_Calculation_Functions::VALUE();
      }
      if ($value == 0) {
        return 0;
      }
      elseif ($value < 0) {
        return PHPExcel_Calculation_Functions::NaN();
      }
      $myFactors = self::_factors(floor($value));
      $myCountedFactors = array_count_values($myFactors);
      $myPoweredFactors = array();
      foreach ($myCountedFactors as $myCountedFactor => $myCountedPower) {
        $myPoweredFactors[$myCountedFactor] = pow($myCountedFactor, $myCountedPower);
      }
      foreach ($myPoweredFactors as $myPoweredValue => $myPoweredFactor) {
        if (array_key_exists($myPoweredValue, $allPoweredFactors)) {
          if ($allPoweredFactors[$myPoweredValue] < $myPoweredFactor) {
            $allPoweredFactors[$myPoweredValue] = $myPoweredFactor;
          }
        }
        else {
          $allPoweredFactors[$myPoweredValue] = $myPoweredFactor;
        }
      }
    }
    foreach ($allPoweredFactors as $allPoweredFactor) {
      $returnValue *= (int) $allPoweredFactor;
    }
    return $returnValue;
  }

  //	function LCM()

  /**
   * LOG_BASE
   *
   * Returns the logarithm of a number to a specified base. The default base is 10.
   *
   * Excel Function:
   *		LOG(number[,base])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	float	$number		The positive real number for which you want the logarithm
   * @param	float	$base		The base of the logarithm. If base is omitted, it is assumed to be 10.
   * @return	float
   */
  public static function LOG_BASE($number = NULL, $base = 10) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    $base = is_null($base) ? 10 : (double) PHPExcel_Calculation_Functions::flattenSingleValue($base);
    if (!is_numeric($base) || !is_numeric($number)) {
      return PHPExcel_Calculation_Functions::VALUE();
    }
    if ($base <= 0 || $number <= 0) {
      return PHPExcel_Calculation_Functions::NaN();
    }
    return log($number, $base);
  }

  //	function LOG_BASE()

  /**
   * MDETERM
   *
   * Returns the matrix determinant of an array.
   *
   * Excel Function:
   *		MDETERM(array)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	array	$matrixValues	A matrix of values
   * @return	float
   */
  public static function MDETERM($matrixValues) {
    $matrixData = array();
    if (!is_array($matrixValues)) {
      $matrixValues = array(
        array(
          $matrixValues,
        ),
      );
    }
    $row = $maxColumn = 0;
    foreach ($matrixValues as $matrixRow) {
      if (!is_array($matrixRow)) {
        $matrixRow = array(
          $matrixRow,
        );
      }
      $column = 0;
      foreach ($matrixRow as $matrixCell) {
        if (is_string($matrixCell) || $matrixCell === null) {
          return PHPExcel_Calculation_Functions::VALUE();
        }
        $matrixData[$column][$row] = $matrixCell;
        ++$column;
      }
      if ($column > $maxColumn) {
        $maxColumn = $column;
      }
      ++$row;
    }
    if ($row != $maxColumn) {
      return PHPExcel_Calculation_Functions::VALUE();
    }
    try {
      $matrix = new PHPExcel_Shared_JAMA_Matrix($matrixData);
      return $matrix
        ->det();
    } catch (PHPExcel_Exception $ex) {
      return PHPExcel_Calculation_Functions::VALUE();
    }
  }

  //	function MDETERM()

  /**
   * MINVERSE
   *
   * Returns the inverse matrix for the matrix stored in an array.
   *
   * Excel Function:
   *		MINVERSE(array)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	array	$matrixValues	A matrix of values
   * @return	array
   */
  public static function MINVERSE($matrixValues) {
    $matrixData = array();
    if (!is_array($matrixValues)) {
      $matrixValues = array(
        array(
          $matrixValues,
        ),
      );
    }
    $row = $maxColumn = 0;
    foreach ($matrixValues as $matrixRow) {
      if (!is_array($matrixRow)) {
        $matrixRow = array(
          $matrixRow,
        );
      }
      $column = 0;
      foreach ($matrixRow as $matrixCell) {
        if (is_string($matrixCell) || $matrixCell === null) {
          return PHPExcel_Calculation_Functions::VALUE();
        }
        $matrixData[$column][$row] = $matrixCell;
        ++$column;
      }
      if ($column > $maxColumn) {
        $maxColumn = $column;
      }
      ++$row;
    }
    if ($row != $maxColumn) {
      return PHPExcel_Calculation_Functions::VALUE();
    }
    try {
      $matrix = new PHPExcel_Shared_JAMA_Matrix($matrixData);
      return $matrix
        ->inverse()
        ->getArray();
    } catch (PHPExcel_Exception $ex) {
      return PHPExcel_Calculation_Functions::VALUE();
    }
  }

  //	function MINVERSE()

  /**
   * MMULT
   *
   * @param	array	$matrixData1	A matrix of values
   * @param	array	$matrixData2	A matrix of values
   * @return	array
   */
  public static function MMULT($matrixData1, $matrixData2) {
    $matrixAData = $matrixBData = array();
    if (!is_array($matrixData1)) {
      $matrixData1 = array(
        array(
          $matrixData1,
        ),
      );
    }
    if (!is_array($matrixData2)) {
      $matrixData2 = array(
        array(
          $matrixData2,
        ),
      );
    }
    try {
      $rowA = 0;
      foreach ($matrixData1 as $matrixRow) {
        if (!is_array($matrixRow)) {
          $matrixRow = array(
            $matrixRow,
          );
        }
        $columnA = 0;
        foreach ($matrixRow as $matrixCell) {
          if (!is_numeric($matrixCell) || $matrixCell === null) {
            return PHPExcel_Calculation_Functions::VALUE();
          }
          $matrixAData[$rowA][$columnA] = $matrixCell;
          ++$columnA;
        }
        ++$rowA;
      }
      $matrixA = new PHPExcel_Shared_JAMA_Matrix($matrixAData);
      $rowB = 0;
      foreach ($matrixData2 as $matrixRow) {
        if (!is_array($matrixRow)) {
          $matrixRow = array(
            $matrixRow,
          );
        }
        $columnB = 0;
        foreach ($matrixRow as $matrixCell) {
          if (!is_numeric($matrixCell) || $matrixCell === null) {
            return PHPExcel_Calculation_Functions::VALUE();
          }
          $matrixBData[$rowB][$columnB] = $matrixCell;
          ++$columnB;
        }
        ++$rowB;
      }
      $matrixB = new PHPExcel_Shared_JAMA_Matrix($matrixBData);
      if ($columnA != $rowB) {
        return PHPExcel_Calculation_Functions::VALUE();
      }
      return $matrixA
        ->times($matrixB)
        ->getArray();
    } catch (PHPExcel_Exception $ex) {
      var_dump($ex
        ->getMessage());
      return PHPExcel_Calculation_Functions::VALUE();
    }
  }

  //	function MMULT()

  /**
   * MOD
   *
   * @param	int		$a		Dividend
   * @param	int		$b		Divisor
   * @return	int		Remainder
   */
  public static function MOD($a = 1, $b = 1) {
    $a = PHPExcel_Calculation_Functions::flattenSingleValue($a);
    $b = PHPExcel_Calculation_Functions::flattenSingleValue($b);
    if ($b == 0.0) {
      return PHPExcel_Calculation_Functions::DIV0();
    }
    elseif ($a < 0.0 && $b > 0.0) {
      return $b - fmod(abs($a), $b);
    }
    elseif ($a > 0.0 && $b < 0.0) {
      return $b + fmod($a, abs($b));
    }
    return fmod($a, $b);
  }

  //	function MOD()

  /**
   * MROUND
   *
   * Rounds a number to the nearest multiple of a specified value
   *
   * @param	float	$number			Number to round
   * @param	int		$multiple		Multiple to which you want to round $number
   * @return	float	Rounded Number
   */
  public static function MROUND($number, $multiple) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    $multiple = PHPExcel_Calculation_Functions::flattenSingleValue($multiple);
    if (is_numeric($number) && is_numeric($multiple)) {
      if ($multiple == 0) {
        return 0;
      }
      if (self::SIGN($number) == self::SIGN($multiple)) {
        $multiplier = 1 / $multiple;
        return round($number * $multiplier) / $multiplier;
      }
      return PHPExcel_Calculation_Functions::NaN();
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function MROUND()

  /**
   * MULTINOMIAL
   *
   * Returns the ratio of the factorial of a sum of values to the product of factorials.
   *
   * @param	array of mixed		Data Series
   * @return	float
   */
  public static function MULTINOMIAL() {
    $summer = 0;
    $divisor = 1;

    // Loop through arguments
    foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {

      // Is it a numeric value?
      if (is_numeric($arg)) {
        if ($arg < 1) {
          return PHPExcel_Calculation_Functions::NaN();
        }
        $summer += floor($arg);
        $divisor *= self::FACT($arg);
      }
      else {
        return PHPExcel_Calculation_Functions::VALUE();
      }
    }

    // Return
    if ($summer > 0) {
      $summer = self::FACT($summer);
      return $summer / $divisor;
    }
    return 0;
  }

  //	function MULTINOMIAL()

  /**
   * ODD
   *
   * Returns number rounded up to the nearest odd integer.
   *
   * @param	float	$number			Number to round
   * @return	int		Rounded Number
   */
  public static function ODD($number) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    if (is_null($number)) {
      return 1;
    }
    elseif (is_bool($number)) {
      $number = (int) $number;
    }
    if (is_numeric($number)) {
      $significance = self::SIGN($number);
      if ($significance == 0) {
        return 1;
      }
      $result = self::CEILING($number, $significance);
      if ($result == self::EVEN($result)) {
        $result += $significance;
      }
      return (int) $result;
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function ODD()

  /**
   * POWER
   *
   * Computes x raised to the power y.
   *
   * @param	float		$x
   * @param	float		$y
   * @return	float
   */
  public static function POWER($x = 0, $y = 2) {
    $x = PHPExcel_Calculation_Functions::flattenSingleValue($x);
    $y = PHPExcel_Calculation_Functions::flattenSingleValue($y);

    // Validate parameters
    if ($x == 0.0 && $y == 0.0) {
      return PHPExcel_Calculation_Functions::NaN();
    }
    elseif ($x == 0.0 && $y < 0.0) {
      return PHPExcel_Calculation_Functions::DIV0();
    }

    // Return
    $result = pow($x, $y);
    return !is_nan($result) && !is_infinite($result) ? $result : PHPExcel_Calculation_Functions::NaN();
  }

  //	function POWER()

  /**
   * PRODUCT
   *
   * PRODUCT returns the product of all the values and cells referenced in the argument list.
   *
   * Excel Function:
   *		PRODUCT(value1[,value2[, ...]])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed		$arg,...		Data values
   * @return	float
   */
  public static function PRODUCT() {

    // Return value
    $returnValue = null;

    // Loop through arguments
    foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {

      // Is it a numeric value?
      if (is_numeric($arg) && !is_string($arg)) {
        if (is_null($returnValue)) {
          $returnValue = $arg;
        }
        else {
          $returnValue *= $arg;
        }
      }
    }

    // Return
    if (is_null($returnValue)) {
      return 0;
    }
    return $returnValue;
  }

  //	function PRODUCT()

  /**
   * QUOTIENT
   *
   * QUOTIENT function returns the integer portion of a division. Numerator is the divided number
   *		and denominator is the divisor.
   *
   * Excel Function:
   *		QUOTIENT(value1[,value2[, ...]])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed		$arg,...		Data values
   * @return	float
   */
  public static function QUOTIENT() {

    // Return value
    $returnValue = null;

    // Loop through arguments
    foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {

      // Is it a numeric value?
      if (is_numeric($arg) && !is_string($arg)) {
        if (is_null($returnValue)) {
          $returnValue = $arg == 0 ? 0 : $arg;
        }
        else {
          if ($returnValue == 0 || $arg == 0) {
            $returnValue = 0;
          }
          else {
            $returnValue /= $arg;
          }
        }
      }
    }

    // Return
    return intval($returnValue);
  }

  //	function QUOTIENT()

  /**
   * RAND
   *
   * @param	int		$min	Minimal value
   * @param	int		$max	Maximal value
   * @return	int		Random number
   */
  public static function RAND($min = 0, $max = 0) {
    $min = PHPExcel_Calculation_Functions::flattenSingleValue($min);
    $max = PHPExcel_Calculation_Functions::flattenSingleValue($max);
    if ($min == 0 && $max == 0) {
      return mt_rand(0, 10000000) / 10000000;
    }
    else {
      return mt_rand($min, $max);
    }
  }

  //	function RAND()
  public static function ROMAN($aValue, $style = 0) {
    $aValue = PHPExcel_Calculation_Functions::flattenSingleValue($aValue);
    $style = is_null($style) ? 0 : (int) PHPExcel_Calculation_Functions::flattenSingleValue($style);
    if (!is_numeric($aValue) || $aValue < 0 || $aValue >= 4000) {
      return PHPExcel_Calculation_Functions::VALUE();
    }
    $aValue = (int) $aValue;
    if ($aValue == 0) {
      return '';
    }
    $mill = array(
      '',
      'M',
      'MM',
      'MMM',
      'MMMM',
      'MMMMM',
    );
    $cent = array(
      '',
      'C',
      'CC',
      'CCC',
      'CD',
      'D',
      'DC',
      'DCC',
      'DCCC',
      'CM',
    );
    $tens = array(
      '',
      'X',
      'XX',
      'XXX',
      'XL',
      'L',
      'LX',
      'LXX',
      'LXXX',
      'XC',
    );
    $ones = array(
      '',
      'I',
      'II',
      'III',
      'IV',
      'V',
      'VI',
      'VII',
      'VIII',
      'IX',
    );
    $roman = '';
    while ($aValue > 5999) {
      $roman .= 'M';
      $aValue -= 1000;
    }
    $m = self::_romanCut($aValue, 1000);
    $aValue %= 1000;
    $c = self::_romanCut($aValue, 100);
    $aValue %= 100;
    $t = self::_romanCut($aValue, 10);
    $aValue %= 10;
    return $roman . $mill[$m] . $cent[$c] . $tens[$t] . $ones[$aValue];
  }

  //	function ROMAN()

  /**
   * ROUNDUP
   *
   * Rounds a number up to a specified number of decimal places
   *
   * @param	float	$number			Number to round
   * @param	int		$digits			Number of digits to which you want to round $number
   * @return	float	Rounded Number
   */
  public static function ROUNDUP($number, $digits) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    $digits = PHPExcel_Calculation_Functions::flattenSingleValue($digits);
    if (is_numeric($number) && is_numeric($digits)) {
      $significance = pow(10, (int) $digits);
      if ($number < 0.0) {
        return floor($number * $significance) / $significance;
      }
      else {
        return ceil($number * $significance) / $significance;
      }
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function ROUNDUP()

  /**
   * ROUNDDOWN
   *
   * Rounds a number down to a specified number of decimal places
   *
   * @param	float	$number			Number to round
   * @param	int		$digits			Number of digits to which you want to round $number
   * @return	float	Rounded Number
   */
  public static function ROUNDDOWN($number, $digits) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    $digits = PHPExcel_Calculation_Functions::flattenSingleValue($digits);
    if (is_numeric($number) && is_numeric($digits)) {
      $significance = pow(10, (int) $digits);
      if ($number < 0.0) {
        return ceil($number * $significance) / $significance;
      }
      else {
        return floor($number * $significance) / $significance;
      }
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function ROUNDDOWN()

  /**
   * SERIESSUM
   *
   * Returns the sum of a power series
   *
   * @param	float			$x	Input value to the power series
   * @param	float			$n	Initial power to which you want to raise $x
   * @param	float			$m	Step by which to increase $n for each term in the series
   * @param	array of mixed		Data Series
   * @return	float
   */
  public static function SERIESSUM() {

    // Return value
    $returnValue = 0;

    // Loop through arguments
    $aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
    $x = array_shift($aArgs);
    $n = array_shift($aArgs);
    $m = array_shift($aArgs);
    if (is_numeric($x) && is_numeric($n) && is_numeric($m)) {

      // Calculate
      $i = 0;
      foreach ($aArgs as $arg) {

        // Is it a numeric value?
        if (is_numeric($arg) && !is_string($arg)) {
          $returnValue += $arg * pow($x, $n + $m * $i++);
        }
        else {
          return PHPExcel_Calculation_Functions::VALUE();
        }
      }

      // Return
      return $returnValue;
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function SERIESSUM()

  /**
   * SIGN
   *
   * Determines the sign of a number. Returns 1 if the number is positive, zero (0)
   *		if the number is 0, and -1 if the number is negative.
   *
   * @param	float	$number			Number to round
   * @return	int		sign value
   */
  public static function SIGN($number) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    if (is_bool($number)) {
      return (int) $number;
    }
    if (is_numeric($number)) {
      if ($number == 0.0) {
        return 0;
      }
      return $number / abs($number);
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function SIGN()

  /**
   * SQRTPI
   *
   * Returns the square root of (number * pi).
   *
   * @param	float	$number		Number
   * @return	float	Square Root of Number * Pi
   */
  public static function SQRTPI($number) {
    $number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
    if (is_numeric($number)) {
      if ($number < 0) {
        return PHPExcel_Calculation_Functions::NaN();
      }
      return sqrt($number * M_PI);
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function SQRTPI()

  /**
   * SUBTOTAL
   *
   * Returns a subtotal in a list or database.
   *
   * @param	int		the number 1 to 11 that specifies which function to
   *					use in calculating subtotals within a list.
   * @param	array of mixed		Data Series
   * @return	float
   */
  public static function SUBTOTAL() {
    $aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());

    // Calculate
    $subtotal = array_shift($aArgs);
    if (is_numeric($subtotal) && !is_string($subtotal)) {
      switch ($subtotal) {
        case 1:
          return PHPExcel_Calculation_Statistical::AVERAGE($aArgs);
          break;
        case 2:
          return PHPExcel_Calculation_Statistical::COUNT($aArgs);
          break;
        case 3:
          return PHPExcel_Calculation_Statistical::COUNTA($aArgs);
          break;
        case 4:
          return PHPExcel_Calculation_Statistical::MAX($aArgs);
          break;
        case 5:
          return PHPExcel_Calculation_Statistical::MIN($aArgs);
          break;
        case 6:
          return self::PRODUCT($aArgs);
          break;
        case 7:
          return PHPExcel_Calculation_Statistical::STDEV($aArgs);
          break;
        case 8:
          return PHPExcel_Calculation_Statistical::STDEVP($aArgs);
          break;
        case 9:
          return self::SUM($aArgs);
          break;
        case 10:
          return PHPExcel_Calculation_Statistical::VARFunc($aArgs);
          break;
        case 11:
          return PHPExcel_Calculation_Statistical::VARP($aArgs);
          break;
      }
    }
    return PHPExcel_Calculation_Functions::VALUE();
  }

  //	function SUBTOTAL()

  /**
   * SUM
   *
   * SUM computes the sum of all the values and cells referenced in the argument list.
   *
   * Excel Function:
   *		SUM(value1[,value2[, ...]])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed		$arg,...		Data values
   * @return	float
   */
  public static function SUM() {

    // Return value
    $returnValue = 0;

    // Loop through the arguments
    foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {

      // Is it a numeric value?
      if (is_numeric($arg) && !is_string($arg)) {
        $returnValue += $arg;
      }
    }

    // Return
    return $returnValue;
  }

  //	function SUM()

  /**
   * SUMIF
   *
   * Counts the number of cells that contain numbers within the list of arguments
   *
   * Excel Function:
   *		SUMIF(value1[,value2[, ...]],condition)
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed		$arg,...		Data values
   * @param	string		$condition		The criteria that defines which cells will be summed.
   * @return	float
   */
  public static function SUMIF($aArgs, $condition, $sumArgs = array()) {

    // Return value
    $returnValue = 0;
    $aArgs = PHPExcel_Calculation_Functions::flattenArray($aArgs);
    $sumArgs = PHPExcel_Calculation_Functions::flattenArray($sumArgs);
    if (empty($sumArgs)) {
      $sumArgs = $aArgs;
    }
    $condition = PHPExcel_Calculation_Functions::_ifCondition($condition);

    // Loop through arguments
    foreach ($aArgs as $key => $arg) {
      if (!is_numeric($arg)) {
        $arg = str_replace('"', '""', $arg);
        $arg = PHPExcel_Calculation::_wrapResult(strtoupper($arg));
      }
      $testCondition = '=' . $arg . $condition;
      if (PHPExcel_Calculation::getInstance()
        ->_calculateFormulaValue($testCondition)) {

        // Is it a value within our criteria
        $returnValue += $sumArgs[$key];
      }
    }

    // Return
    return $returnValue;
  }

  //	function SUMIF()

  /**
   * SUMPRODUCT
   *
   * Excel Function:
   *		SUMPRODUCT(value1[,value2[, ...]])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed		$arg,...		Data values
   * @return	float
   */
  public static function SUMPRODUCT() {
    $arrayList = func_get_args();
    $wrkArray = PHPExcel_Calculation_Functions::flattenArray(array_shift($arrayList));
    $wrkCellCount = count($wrkArray);
    for ($i = 0; $i < $wrkCellCount; ++$i) {
      if (!is_numeric($wrkArray[$i]) || is_string($wrkArray[$i])) {
        $wrkArray[$i] = 0;
      }
    }
    foreach ($arrayList as $matrixData) {
      $array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData);
      $count = count($array2);
      if ($wrkCellCount != $count) {
        return PHPExcel_Calculation_Functions::VALUE();
      }
      foreach ($array2 as $i => $val) {
        if (!is_numeric($val) || is_string($val)) {
          $val = 0;
        }
        $wrkArray[$i] *= $val;
      }
    }
    return array_sum($wrkArray);
  }

  //	function SUMPRODUCT()

  /**
   * SUMSQ
   *
   * SUMSQ returns the sum of the squares of the arguments
   *
   * Excel Function:
   *		SUMSQ(value1[,value2[, ...]])
   *
   * @access	public
   * @category Mathematical and Trigonometric Functions
   * @param	mixed		$arg,...		Data values
   * @return	float
   */
  public static function SUMSQ() {

    // Return value
    $returnValue = 0;

    // Loop through arguments
    foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {

      // Is it a numeric value?
      if (is_numeric($arg) && !is_string($arg)) {
        $returnValue += $arg * $arg;
      }
    }

    // Return
    return $returnValue;
  }

  //	function SUMSQ()

  /**
   * SUMX2MY2
   *
   * @param	mixed[]	$matrixData1	Matrix #1
   * @param	mixed[]	$matrixData2	Matrix #2
   * @return	float
   */
  public static function SUMX2MY2($matrixData1, $matrixData2) {
    $array1 = PHPExcel_Calculation_Functions::flattenArray($matrixData1);
    $array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData2);
    $count1 = count($array1);
    $count2 = count($array2);
    if ($count1 < $count2) {
      $count = $count1;
    }
    else {
      $count = $count2;
    }
    $result = 0;
    for ($i = 0; $i < $count; ++$i) {
      if (is_numeric($array1[$i]) && !is_string($array1[$i]) && (is_numeric($array2[$i]) && !is_string($array2[$i]))) {
        $result += $array1[$i] * $array1[$i] - $array2[$i] * $array2[$i];
      }
    }
    return $result;
  }

  //	function SUMX2MY2()

  /**
   * SUMX2PY2
   *
   * @param	mixed[]	$matrixData1	Matrix #1
   * @param	mixed[]	$matrixData2	Matrix #2
   * @return	float
   */
  public static function SUMX2PY2($matrixData1, $matrixData2) {
    $array1 = PHPExcel_Calculation_Functions::flattenArray($matrixData1);
    $array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData2);
    $count1 = count($array1);
    $count2 = count($array2);
    if ($count1 < $count2) {
      $count = $count1;
    }
    else {
      $count = $count2;
    }
    $result = 0;
    for ($i = 0; $i < $count; ++$i) {
      if (is_numeric($array1[$i]) && !is_string($array1[$i]) && (is_numeric($array2[$i]) && !is_string($array2[$i]))) {
        $result += $array1[$i] * $array1[$i] + $array2[$i] * $array2[$i];
      }
    }
    return $result;
  }

  //	function SUMX2PY2()

  /**
   * SUMXMY2
   *
   * @param	mixed[]	$matrixData1	Matrix #1
   * @param	mixed[]	$matrixData2	Matrix #2
   * @return	float
   */
  public static function SUMXMY2($matrixData1, $matrixData2) {
    $array1 = PHPExcel_Calculation_Functions::flattenArray($matrixData1);
    $array2 = PHPExcel_Calculation_Functions::flattenArray($matrixData2);
    $count1 = count($array1);
    $count2 = count($array2);
    if ($count1 < $count2) {
      $count = $count1;
    }
    else {
      $count = $count2;
    }
    $result = 0;
    for ($i = 0; $i < $count; ++$i) {
      if (is_numeric($array1[$i]) && !is_string($array1[$i]) && (is_numeric($array2[$i]) && !is_string($array2[$i]))) {
        $result += ($array1[$i] - $array2[$i]) * ($array1[$i] - $array2[$i]);
      }
    }
    return $result;
  }

  //	function SUMXMY2()

  /**
   * TRUNC
   *
   * Truncates value to the number of fractional digits by number_digits.
   *
   * @param	float		$value
   * @param	int			$digits
   * @return	float		Truncated value
   */
  public static function TRUNC($value = 0, $digits = 0) {
    $value = PHPExcel_Calculation_Functions::flattenSingleValue($value);
    $digits = PHPExcel_Calculation_Functions::flattenSingleValue($digits);

    // Validate parameters
    if (!is_numeric($value) || !is_numeric($digits)) {
      return PHPExcel_Calculation_Functions::VALUE();
    }
    $digits = floor($digits);

    // Truncate
    $adjust = pow(10, $digits);
    if ($digits > 0 && rtrim(intval((abs($value) - abs(intval($value))) * $adjust), '0') < $adjust / 10) {
      return $value;
    }
    return intval($value * $adjust) / $adjust;
  }

}

//	class PHPExcel_Calculation_MathTrig

Classes

Name	Description
PHPExcel_Calculation_MathTrig	PHPExcel_Calculation_MathTrig