Initial refactoring of vector and matrix classes

src/blackmisc/mathematics.cpp

@@ -0,0 +1,38 @@
+/*  Copyright (C) 2013 VATSIM Community / authors
+ *  This Source Code Form is subject to the terms of the Mozilla Public
+ *  License, v. 2.0. If a copy of the MPL was not distributed with this
+ *  file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "blackmisc/mathematics.h"
+#include <algorithm>    // std::max
+
+namespace BlackMisc
+{
+namespace Math
+{
+
+/*
+ * Hypotenuse
+ */
+double CMath::hypot(double x, double y)
+{
+    x = abs(x);
+    y = abs(y);
+    double max = std::max(x, y);
+    double min = std::min(x, y);
+    double r = min / max;
+    return max * sqrt(1 + r * r);
+}
+
+/*
+ * Real part of cubic root
+ */
+double CMath::cubicRootReal(const double x)
+{
+    double result;
+    result = std::pow(std::abs(x), (double)1 / 3);
+    return x < 0 ? -result : result;
+}
+
+} // namespace
+} // namespace