<?php
if (!defined('PHPEXCEL_ROOT')) {
define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}
class PHPExcel_Calculation_MathTrig {
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((integer) $value);
}
}
private static function _romanCut($num, $n) {
return ($num - ($num % $n ) ) / $n;
}
public static function ATAN2($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 = (float) $xCoordinate;
$yCoordinate = (float) $yCoordinate;
if (($xCoordinate == 0) && ($yCoordinate == 0)) {
return PHPExcel_Calculation_Functions::DIV0();
}
return atan2($yCoordinate, $xCoordinate);
}
return PHPExcel_Calculation_Functions::VALUE();
}
public static function CEILING($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) * $significance;
} else {
return PHPExcel_Calculation_Functions::NaN();
}
}
return PHPExcel_Calculation_Functions::VALUE();
}
public static function COMBIN($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();
}
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();
}
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 $factorial ;
}
return PHPExcel_Calculation_Functions::VALUE();
}
public static function FACTDOUBLE($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 $factorial ;
}
return PHPExcel_Calculation_Functions::VALUE();
}
public static function FLOOR($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();
}
public static function GCD() {
$returnValue = 1;
$allValuesFactors = array();
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,$value);
}
}
public static function INT($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();
}
public static function LCM() {
$returnValue = 1;
$allPoweredFactors = array();
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 *= (integer) $allPoweredFactor;
}
return $returnValue;
}
public static function LOG_BASE($number = NULL, $base = 10) {
$number = PHPExcel_Calculation_Functions::flattenSingleValue($number);
$base = (is_null($base)) ? 10 : (float) 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, $base);
}
public static function MDETERM($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 $ex) {
return PHPExcel_Calculation_Functions::VALUE();
}
}
public static function MINVERSE($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 $ex) {
return PHPExcel_Calculation_Functions::VALUE();
}
}
public static function MMULT($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();
}
}
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,$b);
}
public static function MROUND($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();
}
public static function MULTINOMIAL() {
$summer = 0;
$divisor = 1;
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
if (is_numeric($arg)) {
if ($arg < 1) {
return PHPExcel_Calculation_Functions::NaN();
}
$summer += floor($arg);
$divisor *= self::FACT($arg);
} else {
return PHPExcel_Calculation_Functions::VALUE();
}
}
if ($summer > 0) {
$summer = self::FACT($summer);
return $summer / $divisor;
}
return 0;
}
public static function ODD($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) $result;
}
return PHPExcel_Calculation_Functions::VALUE();
}
public static function POWER($x = 0, $y = 2) {
$x = PHPExcel_Calculation_Functions::flattenSingleValue($x);
$y = PHPExcel_Calculation_Functions::flattenSingleValue($y);
if ($x == 0.0 && $y == 0.0) {
return PHPExcel_Calculation_Functions::NaN();
} elseif ($x == 0.0 && $y < 0.0) {
return PHPExcel_Calculation_Functions::DIV0();
}
$result = pow($x, $y);
return (!is_nan($result) && !is_infinite($result)) ? $result : PHPExcel_Calculation_Functions::NaN();
}
public static function PRODUCT() {
$returnValue = null;
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
if ((is_numeric($arg)) && (!is_string($arg))) {
if (is_null($returnValue)) {
$returnValue = $arg;
} else {
$returnValue *= $arg;
}
}
}
if (is_null($returnValue)) {
return 0;
}
return $returnValue;
}
public static function QUOTIENT() {
$returnValue = null;
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
if ((is_numeric($arg)) && (!is_string($arg))) {
if (is_null($returnValue)) {
$returnValue = ($arg == 0) ? 0 : $arg;
} else {
if (($returnValue == 0) || ($arg == 0)) {
$returnValue = 0;
} else {
$returnValue /= $arg;
}
}
}
}
return intval($returnValue);
}
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, $max);
}
}
public static function ROMAN($aValue, $style=0) {
$aValue = PHPExcel_Calculation_Functions::flattenSingleValue($aValue);
$style = (is_null($style)) ? 0 : (integer) PHPExcel_Calculation_Functions::flattenSingleValue($style);
if ((!is_numeric($aValue)) || ($aValue < 0) || ($aValue >= 4000)) {
return PHPExcel_Calculation_Functions::VALUE();
}
$aValue = (integer) $aValue;
if ($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[$aValue];
}
public static function ROUNDUP($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) / $significance;
}
}
return PHPExcel_Calculation_Functions::VALUE();
}
public static function ROUNDDOWN($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();
}
public static function SERIESSUM() {
$returnValue = 0;
$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))) {
$i = 0;
foreach($aArgs as $arg) {
if ((is_numeric($arg)) && (!is_string($arg))) {
$returnValue += $arg * pow($x,$n + ($m * $i++));
} else {
return PHPExcel_Calculation_Functions::VALUE();
}
}
return $returnValue;
}
return PHPExcel_Calculation_Functions::VALUE();
}
public static function SIGN($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();
}
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();
}
public static function SUBTOTAL() {
$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
$subtotal = array_shift($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();
}
public static function SUM() {
$returnValue = 0;
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
if ((is_numeric($arg)) && (!is_string($arg))) {
$returnValue += $arg;
}
}
return $returnValue;
}
public static function SUMIF($aArgs,$condition,$sumArgs = array()) {
$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);
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)) {
$returnValue += $sumArgs[$key];
}
}
return $returnValue;
}
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);
}
public static function SUMSQ() {
$returnValue = 0;
foreach (PHPExcel_Calculation_Functions::flattenArray(func_get_args()) as $arg) {
if ((is_numeric($arg)) && (!is_string($arg))) {
$returnValue += ($arg * $arg);
}
}
return $returnValue;
}
public static function SUMX2MY2($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 $result;
}
public static function SUMX2PY2($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 $result;
}
public static function SUMXMY2($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 $result;
}
public static function TRUNC($value = 0, $digits = 0) {
$value = PHPExcel_Calculation_Functions::flattenSingleValue($value);
$digits = PHPExcel_Calculation_Functions::flattenSingleValue($digits);
if ((!is_numeric($value)) || (!is_numeric($digits)))
return PHPExcel_Calculation_Functions::VALUE();
$digits = floor($digits);
$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;
}
}