71 lines
1.7 KiB
PHP
71 lines
1.7 KiB
PHP
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<?php
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class Complex {
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private $realPart = 0;
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private $imaginaryPart = 0;
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private $suffix = 'i';
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public static function _parseComplex($complexNumber) {
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$complexNumber = (string) $complexNumber;
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$validComplex = preg_match('/^([-+]?(\d+\.?\d*|\d*\.?\d+)([Ee][-+]?[0-2]?\d{1,2})?)([-+]?(\d+\.?\d*|\d*\.?\d+)([Ee][-+]?[0-2]?\d{1,2})?)?(([-+]?)([ij]?))$/ui',$complexNumber,$complexParts);
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if (!$validComplex) {
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return array( $complexNumber, 0, '' );
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}
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if (($complexParts[4] === '') && ($complexParts[9] !== '')) {
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$complexParts[4] = $complexParts[8] . 1;
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}
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return array( (float) $complexParts[1],
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(float) $complexParts[4],
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$complexParts[9]
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);
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} // function _parseComplex()
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public function __construct($realPart, $imaginaryPart = null, $suffix = null)
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{
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if ($imaginaryPart === null) {
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if (is_array($realPart)) {
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list ($realPart, $imaginaryPart, $suffix) = $realPart;
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} elseif((is_string($realPart)) || (is_numeric($realPart))) {
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list ($realPart, $imaginaryPart, $suffix) = self::_parseComplex($realPart);
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}
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}
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$this->realPart = $realPart;
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$this->imaginaryPart = $imaginaryPart;
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$this->suffix = strtolower($suffix);
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}
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public function getReal()
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{
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return $this->realPart;
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}
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public function getImaginary()
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{
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return $this->imaginaryPart;
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}
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public function getSuffix()
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{
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return $this->suffix;
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}
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public function __toString() {
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$str = "";
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if ($this->imaginaryPart != 0.0) $str .= $this->imaginaryPart . $this->suffix;
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if ($this->realPart != 0.0) {
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if ($str) $str = "+" . $str;
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$str = $this->realPart . $str;
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}
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if (!$str) $str = "0";
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return $str;
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}
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}
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