1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/markbaker/complex/classes/src/functions/exp.php b/vendor/markbaker/complex/classes/src/functions/exp.php
new file mode 100644
index 0000000..cbc37e5
--- /dev/null
+++ b/vendor/markbaker/complex/classes/src/functions/exp.php
@@ -0,0 +1,36 @@
+<?php
+
+/**
+ *
+ * Function code for the complex exp() function
+ *
+ * @copyright  Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
+ * @license    https://opensource.org/licenses/MIT    MIT
+ */
+namespace Complex;
+
+/**
+ * Returns the exponential of a complex number.
+ *
+ * @param     Complex|mixed    $complex    Complex number or a numeric value.
+ * @return    Complex          The exponential of the complex argument.
+ * @throws    Exception        If argument isn't a valid real or complex number.
+ */
+if (!function_exists(__NAMESPACE__ . '\\exp')) {
+    function exp($complex): Complex
+    {
+        $complex = Complex::validateComplexArgument($complex);
+
+        if (($complex->getReal() == 0.0) && (\abs($complex->getImaginary()) == M_PI)) {
+            return new Complex(-1.0, 0.0);
+        }
+
+        $rho = \exp($complex->getReal());
+
+        return new Complex(
+            $rho * \cos($complex->getImaginary()),
+            $rho * \sin($complex->getImaginary()),
+            $complex->getSuffix()
+        );
+    }
+}