add sympy to environment.yml

ryan-keenan · ryan-keenan · commit f05aa80c0f95 · 2017-05-23T14:22:45.000-07:00
diff --git a/environment.yml b/environment.yml
@@ -5,6 +5,7 @@ channels:
 dependencies:
     - python==3.5.2
     - numpy
+    - sympy
     - matplotlib
     - jupyter
     - opencv3
