TEST: Attempt to solve nan problem in python 2.7

dipy · Jul 14, 2015 · a597042 · a597042
1 parent 862b2f4
commit a597042
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/dipy/core/tests/test_geometry.py b/dipy/core/tests/test_geometry.py
@@ -6,6 +6,8 @@
 
 import random
 
+import math
+
 from dipy.core.geometry import (sphere2cart, cart2sphere,
                                 nearest_pos_semi_def,
                                 sphere_distance,
@@ -281,7 +283,7 @@ def test_perpendicular_directions():
         # check if directions are sampled by multiples of 2*pi / num
         delta_a = 2 * np.pi / num
         for d in pd:
-            angle = np.arccos(np.dot(pd[0], d))
+            angle = math.arccos(np.dot(pd[0], d))
             rest = angle % delta_a
             if rest > delta_a * 0.99:  # To correct cases of negative error
                 rest = rest - delta_a