crscl.f3
Usage
Functions/Subroutines
subroutine crscl (n, a, x, incx)
CRSCL multiplies a vector by the reciprocal of a real scalar.
Function/Subroutine Documentation
subroutine crscl (integer n, complex a, complex, dimension( * ) x, integer incx)
CRSCL multiplies a vector by the reciprocal of a real scalar.
Purpose:
!> !> CRSCL multiplies an n-element complex vector x by the complex scalar !> 1/a. This is done without overflow or underflow as long as !> the final result x/a does not overflow or underflow. !>
Parameters
N
!> N is INTEGER !> The number of components of the vector x. !>
A
!> A is COMPLEX !> The scalar a which is used to divide each component of x. !> A must not be 0, or the subroutine will divide by zero. !>
X
!> X is COMPLEX array, dimension !> (1+(N-1)*abs(INCX)) !> The n-element vector x. !>
INCX
!> INCX is INTEGER !> The increment between successive values of the vector X. !> > 0: X(1) = X(1) and X(1+(i-1)*INCX) = x(i), 1< i<= n !>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.
Definition at line 83 of file crscl.f.