Changeset 677ccf1 in sasmodels

Timestamp:

Nov 22, 2015 8:49:24 PM (9 years ago)

Author:

Paul Kienzle <pkienzle@…>

Branches:

master, core_shell_microgels, costrafo411, magnetic_model, release_v0.94, release_v0.95, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests

Children:

7cf2cfd

Parents:

9fd094c

Message:

tweak the gaussian formula for efficiency

File:

• sasmodels/models/gaussian_peak.py (modified) (1 diff)

sasmodels/models/gaussian_peak.py

@@ -55 +55 @@
 
 Iq = """
-    return exp(-0.5*pow((q - q0)/sigma,2.0));
+    double scaled_dq = (q - q0)/sigma;
+    return exp(-0.5*scaled_dq*scaled_dq); //sqrt(2*M_PI*sigma*sigma);
     """