From c7b3e7149f579a63c15646b53376dde87b55bbae Mon Sep 17 00:00:00 2001
From: villberg <villberg@ac1ea38d-2e2b-0410-8846-a27921b304fc>
Date: Mon, 23 Jun 2014 12:02:34 +0000
Subject: [PATCH] refs #4994

git-svn-id: https://www.simantics.org/svn/simantics/sysdyn/trunk@29690 ac1ea38d-2e2b-0410-8846-a27921b304fc
---
 .../src/fi/semantum/sysdyn/solver/Environment.java       | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fi.semantum.sysdyn.solver/src/fi/semantum/sysdyn/solver/Environment.java b/fi.semantum.sysdyn.solver/src/fi/semantum/sysdyn/solver/Environment.java
index a8c875d6..d3cfce24 100644
--- a/fi.semantum.sysdyn.solver/src/fi/semantum/sysdyn/solver/Environment.java
+++ b/fi.semantum.sysdyn.solver/src/fi/semantum/sysdyn/solver/Environment.java
@@ -100,6 +100,15 @@ final public class Environment implements IEnvironment, ISystem {
 				return Math.exp(x);
 			}
 			
+		});
+		model.functions.put("log", new Fn1(2) {
+
+			@Override
+			public Object evaluate(IEnvironment environment, int argc) {
+				Double x = (Double)environment.getValue(0);
+				return Math.log(x);
+			}
+			
 		});
 		model.functions.put("zidz", new Fn1(2) {
 
-- 
2.47.1