PetscAtanReal#
Returns the arc tangent of a PetscReal value, returned in radians in the range \([-\pi/2, \pi/2]\)
Synopsis#
#include <petscmath.h>
PetscReal PetscAtanReal(PetscReal a)
Not Collective; No Fortran Support
Input Parameter#
. a - the value
See Also#
PetscReal, PetscScalar, PetscComplex, PetscAtanComplex(), PetscAtanScalar()
Level#
beginner
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages