Changeset 4962519 in sasmodels for sasmodels/models/sc_paracrystal.c

Timestamp:

Oct 14, 2016 6:49:58 PM (8 years ago)

Author:

Paul Kienzle <pkienzle@…>

Branches:

master, core_shell_microgels, costrafo411, magnetic_model, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests

Children:

14838a3

Parents:

a5b6997

Message:

use square and cube instead of pow()

File:

• sasmodels/models/sc_paracrystal.c (modified) (1 diff)

sasmodels/models/sc_paracrystal.c

@@ -49 +49 @@
         double da = d_factor*dnn;
         double temp1 = qq*qq*da*da;
-        double temp2 = pow( 1.0-exp(-1.0*temp1) ,3);
+        double temp2 = cube(-expm1(-temp1));
         double temp3 = qq*dnn;
         double temp4 = 2.0*exp(-0.5*temp1);
         double temp5 = exp(-1.0*temp1);
 
-        double integrand = temp2*sc_eval(yy,xx,temp3,temp4,temp5);
-        integrand /= M_PI_2;
+        double integrand = temp2*sc_eval(yy,xx,temp3,temp4,temp5)/M_PI_2;
 
         return(integrand);