From 406599d66f61b46b2b1ddb5c595f5105caae0128 Mon Sep 17 00:00:00 2001
From: Martin Bauer <martin.bauer@fau.de>
Date: Thu, 12 Jan 2017 10:46:52 +0100
Subject: [PATCH] new lbm module: creation function for moment based methods
(SRT, TRT, MRT)
---
sympyextensions.py | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sympyextensions.py b/sympyextensions.py
index ad52a6ca1..261438c64 100644
--- a/sympyextensions.py
+++ b/sympyextensions.py
@@ -326,3 +326,7 @@ def matrixFromColumnVectors(columnVectors):
c = columnVectors
return sp.Matrix([list(c[i]) for i in range(len(c))]).transpose()
+
+def commonDenominator(expr):
+ denominators = [r.q for r in expr.atoms(sp.Rational)]
+ return sp.lcm(denominators)
--
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