r23296 - /branches/disp_speed/lib/dispersion/dpl94.py -- May 21, 2014 - 13:02

Author: tlinnet
Date: Wed May 21 13:02:56 2014
New Revision: 23296

URL: http://svn.gna.org/viewcvs/relax?rev=23296&view=rev
Log:
Align math-domain catching for model DPL94 with trunk implementation.

task #7793: (https://gna.org/task/?7793) Speed-up of dispersion models.

This is to implement catching of math domain errors, before they occur.

The catching of errors have to be more careful.

Modified:
    branches/disp_speed/lib/dispersion/dpl94.py

Modified: branches/disp_speed/lib/dispersion/dpl94.py
URL: 
http://svn.gna.org/viewcvs/relax/branches/disp_speed/lib/dispersion/dpl94.py?rev=23296&r1=23295&r2=23296&view=diff
==============================================================================
--- branches/disp_speed/lib/dispersion/dpl94.py (original)
+++ branches/disp_speed/lib/dispersion/dpl94.py Wed May 21 13:02:56 2014
@@ -98,6 +98,11 @@
     # The numerator.
     numer = sin_theta2 * phi_ex * kex
 
+    # Catch zeros (to avoid pointless mathematical operations).
+    # This will result in no exchange, returning flat lines.
+    if min(numer) == 0.0:
+        return R1_R2
+
     # Denominator.
     denom = kex2 + spin_lock_fields2