1 files changed, 34 insertions, 0 deletions
diff --git a/vendor/markbaker/complex/classes/src/functions/cosh.php b/vendor/markbaker/complex/classes/src/functions/cosh.php
new file mode 100644
index 0000000..531ae52
--- /dev/null
+++ b/vendor/markbaker/complex/classes/src/functions/cosh.php
@@ -0,0 +1,34 @@
+<?php
+
+/**
+ *
+ * Function code for the complex cosh() function
+ *
+ * @copyright  Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
+ * @license    https://opensource.org/licenses/MIT    MIT
+ */
+namespace Complex;
+
+/**
+ * Returns the hyperbolic cosine of a complex number.
+ *
+ * @param     Complex|mixed    $complex    Complex number or a numeric value.
+ * @return    Complex          The hyperbolic cosine of the complex argument.
+ * @throws    Exception        If argument isn't a valid real or complex number.
+ */
+if (!function_exists(__NAMESPACE__ . '\\cosh')) {
+    function cosh($complex): Complex
+    {
+        $complex = Complex::validateComplexArgument($complex);
+
+        if ($complex->isReal()) {
+            return new Complex(\cosh($complex->getReal()));
+        }
+
+        return new Complex(
+            \cosh($complex->getReal()) * \cos($complex->getImaginary()),
+            \sinh($complex->getReal()) * \sin($complex->getImaginary()),
+            $complex->getSuffix()
+        );
+    }
+}