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-rw-r--r--vendor/markbaker/complex/classes/src/functions/sin.php34
1 files changed, 34 insertions, 0 deletions
diff --git a/vendor/markbaker/complex/classes/src/functions/sin.php b/vendor/markbaker/complex/classes/src/functions/sin.php
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+<?php
+
+/**
+ *
+ * Function code for the complex sin() function
+ *
+ * @copyright Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
+ * @license https://opensource.org/licenses/MIT MIT
+ */
+namespace Complex;
+
+/**
+ * Returns the sine of a complex number.
+ *
+ * @param Complex|mixed $complex Complex number or a numeric value.
+ * @return Complex The sine of the complex argument.
+ * @throws Exception If argument isn't a valid real or complex number.
+ */
+if (!function_exists(__NAMESPACE__ . '\\sin')) {
+ function sin($complex): Complex
+ {
+ $complex = Complex::validateComplexArgument($complex);
+
+ if ($complex->isReal()) {
+ return new Complex(\sin($complex->getReal()));
+ }
+
+ return new Complex(
+ \sin($complex->getReal()) * \cosh($complex->getImaginary()),
+ \cos($complex->getReal()) * \sinh($complex->getImaginary()),
+ $complex->getSuffix()
+ );
+ }
+}