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author | Anton Luka Šijanec <anton@sijanec.eu> | 2024-05-27 13:08:29 +0200 |
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committer | Anton Luka Šijanec <anton@sijanec.eu> | 2024-05-27 13:08:29 +0200 |
commit | 75160b12821f7f4299cce7f0b69c83c1502ae071 (patch) | |
tree | 27e25e4ccaef45f0c58b22831164050d1af1d4db /vendor/markbaker/complex/classes/src/functions/theta.php | |
parent | prvi-commit (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | vendor/markbaker/complex/classes/src/functions/theta.php | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/vendor/markbaker/complex/classes/src/functions/theta.php b/vendor/markbaker/complex/classes/src/functions/theta.php new file mode 100644 index 0000000..cdba45e --- /dev/null +++ b/vendor/markbaker/complex/classes/src/functions/theta.php @@ -0,0 +1,40 @@ +<?php
+
+/**
+ *
+ * Function code for the complex theta() function
+ *
+ * @copyright Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
+ * @license https://opensource.org/licenses/MIT MIT
+ */
+namespace Complex;
+
+/**
+ * Returns the theta of a complex number.
+ * This is the angle in radians from the real axis to the representation of the number in polar coordinates.
+ *
+ * @param Complex|mixed $complex Complex number or a numeric value.
+ * @return float The theta value of the complex argument.
+ * @throws Exception If argument isn't a valid real or complex number.
+ */
+if (!function_exists(__NAMESPACE__ . '\\theta')) {
+ function theta($complex): float
+ {
+ $complex = Complex::validateComplexArgument($complex);
+
+ if ($complex->getReal() == 0.0) {
+ if ($complex->isReal()) {
+ return 0.0;
+ } elseif ($complex->getImaginary() < 0.0) {
+ return M_PI / -2;
+ }
+ return M_PI / 2;
+ } elseif ($complex->getReal() > 0.0) {
+ return \atan($complex->getImaginary() / $complex->getReal());
+ } elseif ($complex->getImaginary() < 0.0) {
+ return -(M_PI - \atan(\abs($complex->getImaginary()) / \abs($complex->getReal())));
+ }
+
+ return M_PI - \atan($complex->getImaginary() / \abs($complex->getReal()));
+ }
+}
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