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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\Engineering;
use Complex\Complex as ComplexObject;
use Complex\Exception as ComplexException;
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
class Complex
{
/**
* COMPLEX.
*
* Converts real and imaginary coefficients into a complex number of the form x +/- yi or x +/- yj.
*
* Excel Function:
* COMPLEX(realNumber,imaginary[,suffix])
*
* @param mixed $realNumber the real float coefficient of the complex number
* @param mixed $imaginary the imaginary float coefficient of the complex number
* @param mixed $suffix The character suffix for the imaginary component of the complex number.
* If omitted, the suffix is assumed to be "i".
*
* @return string
*/
public static function COMPLEX($realNumber = 0.0, $imaginary = 0.0, $suffix = 'i')
{
$realNumber = ($realNumber === null) ? 0.0 : Functions::flattenSingleValue($realNumber);
$imaginary = ($imaginary === null) ? 0.0 : Functions::flattenSingleValue($imaginary);
$suffix = ($suffix === null) ? 'i' : Functions::flattenSingleValue($suffix);
try {
$realNumber = EngineeringValidations::validateFloat($realNumber);
$imaginary = EngineeringValidations::validateFloat($imaginary);
} catch (Exception $e) {
return $e->getMessage();
}
if (($suffix == 'i') || ($suffix == 'j') || ($suffix == '')) {
$complex = new ComplexObject($realNumber, $imaginary, $suffix);
return (string) $complex;
}
return Functions::VALUE();
}
/**
* IMAGINARY.
*
* Returns the imaginary coefficient of a complex number in x + yi or x + yj text format.
*
* Excel Function:
* IMAGINARY(complexNumber)
*
* @param string $complexNumber the complex number for which you want the imaginary
* coefficient
*
* @return float|string
*/
public static function IMAGINARY($complexNumber)
{
$complexNumber = Functions::flattenSingleValue($complexNumber);
try {
$complex = new ComplexObject($complexNumber);
} catch (ComplexException $e) {
return Functions::NAN();
}
return $complex->getImaginary();
}
/**
* IMREAL.
*
* Returns the real coefficient of a complex number in x + yi or x + yj text format.
*
* Excel Function:
* IMREAL(complexNumber)
*
* @param string $complexNumber the complex number for which you want the real coefficient
*
* @return float|string
*/
public static function IMREAL($complexNumber)
{
$complexNumber = Functions::flattenSingleValue($complexNumber);
try {
$complex = new ComplexObject($complexNumber);
} catch (ComplexException $e) {
return Functions::NAN();
}
return $complex->getReal();
}
}