diff options
Diffstat (limited to 'utils/fr.py')
| -rw-r--r-- | utils/fr.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/utils/fr.py b/utils/fr.py index d899d42..7c05f85 100644 --- a/utils/fr.py +++ b/utils/fr.py @@ -347,8 +347,11 @@ def fr_to_angles(ratios): cphi2 = fr2 sphi2 = (1.0 - cphi2) - spsi2 = fr1 / sphi2 - cpsi2 = fr0 / sphi2 + if sphi2 == 0.: + return (0., 0.) + else: + spsi2 = fr1 / sphi2 + cpsi2 = fr0 / sphi2 sphi4 = sphi2**2 c2psi = COS(ACOS(SQRT(cpsi2))*2) |