LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
 All Classes Files Functions Variables Typedefs Macros
srscl.f File Reference

Go to the source code of this file.

Functions/Subroutines

subroutine srscl (N, SA, SX, INCX)
 SRSCL multiplies a vector by the reciprocal of a real scalar. More...
 

Function/Subroutine Documentation

subroutine srscl ( integer  N,
real  SA,
real, dimension( * )  SX,
integer  INCX 
)

SRSCL multiplies a vector by the reciprocal of a real scalar.

Download SRSCL + dependencies [TGZ] [ZIP] [TXT]

Purpose:
 SRSCL multiplies an n-element real vector x by the real scalar 1/a.
 This is done without overflow or underflow as long as
 the final result x/a does not overflow or underflow.
Parameters
[in]N
          N is INTEGER
          The number of components of the vector x.
[in]SA
          SA is REAL
          The scalar a which is used to divide each component of x.
          SA must be >= 0, or the subroutine will divide by zero.
[in,out]SX
          SX is REAL array, dimension
                         (1+(N-1)*abs(INCX))
          The n-element vector x.
[in]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.
Date
September 2012

Definition at line 85 of file srscl.f.

Here is the call graph for this function:

Here is the caller graph for this function: