From b25d4a855d9b5d08e8e1d174bcc0902797d0661f Mon Sep 17 00:00:00 2001
From: Martin Bauer <martin.bauer@fau.de>
Date: Sun, 11 Jun 2017 17:08:44 +0200
Subject: [PATCH] Quadratic equilibrium construction - demo notebook
---
sympyextensions.py | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/sympyextensions.py b/sympyextensions.py
index 489849ca7..c580680be 100644
--- a/sympyextensions.py
+++ b/sympyextensions.py
@@ -20,6 +20,11 @@ def scalarProduct(a, b):
return sum(a_i * b_i for a_i, b_i in zip(a, b))
+def equationsToMatrix(equations, degreesOfFreedom):
+ return sp.Matrix(len(equations), len(degreesOfFreedom),
+ lambda row, col: equations[row].coeff(degreesOfFreedom[col]))
+
+
def normalizeProduct(product):
"""
Expects a sympy expression that can be interpreted as a product and
--
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