From 67da7c1ce0c0bfe52499a9e0f9f31a0a1bc9a179 Mon Sep 17 00:00:00 2001
From: Arne Vansteenkiste <a.vansteenkiste@gmail.com>
Date: Tue, 4 Nov 2014 10:56:36 +0100
Subject: [PATCH] update rk4 documentation

---
 doc/api-template.html | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/doc/api-template.html b/doc/api-template.html
index 232b2b358..5c764e9c7 100644
--- a/doc/api-template.html
+++ b/doc/api-template.html
@@ -259,12 +259,13 @@ <h2>Solver types</h2>
 Optionally, a different solver may be chosen (at any point) with <code>SetSolver(int)</code>. Currently available solver types:
 <ul>
 	<li> <code>5</code>: RK45 (Dormand-Prince) solver (the default). An accurate solver, very fast for magnetization dynamics at the cost of some memory usage. Cannot be used with finite temperature.</li> 
+	<li> <code>4</code>: Classic 4th-order Runge-Kutta method. Intended for finite temperature simulations with a large, fixed time step.</li> 
 	<li> <code>3</code>: RK23 (Bogacki-Shampine) solver. A robust and reasonably fast solver with low memory requirements. Typically outperforms RK45 when relaxing the magnetization with little dynamics, so it used internally by <code>Relax()</code>. Cannot be used with finite temperature.</li> 
-	<li> <code>2</code>: Adaptive Heun solver. Robust and uses very little memory but takes smaller time steps than the higher-order solvers. Suited for finite temperature. </li> 
+	<li> <code>2</code>: Adaptive Heun solver. Robust and uses very little memory but takes smaller time steps than the higher-order solvers. Suited for finite temperature simulations with a small, fixed time step. </li> 
 	<li> <code>1</code>: Euler solver (requires <code>FixDt = ...</code>, ignores other settings). Only useful in exceptional situations or for debugging. </li>
 </ul>
 E.g.:
-<pre><code>SetSolver(1) // Euler
+<pre><code>SetSolver(2) // Heun
 FixDt = 1e-15
 </code></pre>