From 0f04e97fa748b6740da4c9512b596d7d3a2788c5 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Wed, 6 Oct 2010 16:47:04 -0400
Subject: Add the Euler method.

---
 tests/Euler.cpp | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 tests/Euler.cpp

(limited to 'tests/Euler.cpp')

diff --git a/tests/Euler.cpp b/tests/Euler.cpp
new file mode 100644
index 0000000..5666cd8
--- /dev/null
+++ b/tests/Euler.cpp
@@ -0,0 +1,25 @@
+#include "vZ.hpp"
+#include <cmath>
+#include <cstdlib>
+#include <iostream>
+
+// y' = y (y == C*exp(t))
+double
+f(double t, double y)
+{
+  return y;
+}
+
+int
+main()
+{
+  vZ::EulerIntegrator integrator(f);
+  integrator.y(1.0).x(0.0).h(0.01);
+
+  integrator.integrate(2.0);
+
+  std::cout << integrator.y() << std::endl
+            << std::exp(2.0)  << std::endl;
+
+  return EXIT_SUCCESS;
+}
-- 
cgit v1.2.3