<?php
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namespace Matrix\Operators;
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use \Matrix\Matrix;
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use \Matrix\Functions;
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use Matrix\Exception;
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class Division extends Multiplication
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{
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/**
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* Execute the division
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*
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* @param mixed $value The matrix or numeric value to divide the current base value by
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* @throws Exception If the provided argument is not appropriate for the operation
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* @return $this The operation object, allowing multiple divisions to be chained
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**/
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public function execute($value)
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{
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if (is_array($value)) {
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$value = new Matrix($value);
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}
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if (is_object($value) && ($value instanceof Matrix)) {
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try {
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$value = Functions::inverse($value);
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} catch (Exception $e) {
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throw new Exception('Division can only be calculated using a matrix with a non-zero determinant');
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}
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return $this->multiplyMatrix($value);
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} elseif (is_numeric($value)) {
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return $this->multiplyScalar(1 / $value);
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}
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throw new Exception('Invalid argument for division');
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}
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}
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