xref: /petsc/src/sys/tests/ex28.c (revision 732aec7a18f2199fb53bb9a2f3aef439a834ce31)
1 static char help[] = "Tests PetscAtan2Real\n";
2 
3 #include <petscsys.h>
4 #include <petscviewer.h>
5 #include <petscmath.h>
6 
main(int argc,char ** argv)7 int main(int argc, char **argv)
8 {
9   PetscReal a;
10 
11   PetscFunctionBeginUser;
12   PetscCall(PetscInitialize(&argc, &argv, NULL, help));
13   a = PetscAtan2Real(1.0, 1.0);
14   PetscCall(PetscPrintf(PETSC_COMM_WORLD, "PetscAtan2Real(1.0,1.0) = %g\n", (double)a));
15   a = PetscAtan2Real(1.0, 0.0);
16   PetscCall(PetscPrintf(PETSC_COMM_WORLD, "PetscAtan2Real(1.0,0.0) = %g\n", (double)a));
17   a = PetscAtan2Real(0.0, 1.0);
18   PetscCall(PetscPrintf(PETSC_COMM_WORLD, "PetscAtan2Real(0.0,1.0) = %g\n", (double)a));
19   a = PetscAtan2Real(0.0, 0.0);
20   PetscCall(PetscPrintf(PETSC_COMM_WORLD, "PetscAtan2Real(0.0,0.0) = %g\n", (double)a));
21   PetscCall(PetscFinalize());
22   return 0;
23 }
24 
25 /*TEST
26 
27    test:
28 
29 TEST*/
30