zrscl.f3
Usage
Functions/Subroutines
subroutine zrscl (n, a, x, incx)
ZDRSCL multiplies a vector by the reciprocal of a real scalar.
Function/Subroutine Documentation
subroutine zrscl (integer n, complex*16 a, complex*16, dimension( * ) x, integer incx)
ZDRSCL multiplies a vector by the reciprocal of a real scalar.
Purpose:
!> !> ZRSCL 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*16 !> 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*16 array, dimension !> (1+(N-1)*abs(INCX)) !> The n-element vector x. !>
INCX
!> INCX is INTEGER !> The increment between successive values of the vector SX. !> > 0: SX(1) = X(1) and SX(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 zrscl.f.