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Diffstat (limited to '')
-rw-r--r-- | vendor/markbaker/matrix/classes/src/Operations/subtract.php | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/vendor/markbaker/matrix/classes/src/Operations/subtract.php b/vendor/markbaker/matrix/classes/src/Operations/subtract.php new file mode 100644 index 0000000..72759b7 --- /dev/null +++ b/vendor/markbaker/matrix/classes/src/Operations/subtract.php @@ -0,0 +1,46 @@ +<?php
+
+/**
+ *
+ * Function code for the matrix subtraction operation
+ *
+ * @copyright Copyright (c) 2018 Mark Baker (https://github.com/MarkBaker/PHPMatrix)
+ * @license https://opensource.org/licenses/MIT MIT
+ */
+
+namespace Matrix;
+
+use Matrix\Operators\Subtraction;
+
+/**
+ * Subtracts two or more matrices
+ *
+ * @param array<int, mixed> $matrixValues The matrices to subtract
+ * @return Matrix
+ * @throws Exception
+ */
+if (!function_exists(__NAMESPACE__ . '\\subtract')) {
+ function subtract(...$matrixValues): Matrix
+ {
+ if (count($matrixValues) < 2) {
+ throw new Exception('Subtraction operation requires at least 2 arguments');
+ }
+
+ $matrix = array_shift($matrixValues);
+
+ if (is_array($matrix)) {
+ $matrix = new Matrix($matrix);
+ }
+ if (!$matrix instanceof Matrix) {
+ throw new Exception('Subtraction arguments must be Matrix or array');
+ }
+
+ $result = new Subtraction($matrix);
+
+ foreach ($matrixValues as $matrix) {
+ $result->execute($matrix);
+ }
+
+ return $result->result();
+ }
+}
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