Provided by: liblapack-doc_3.3.1-1_all
LAPACK-3 - multiplies an n-element real vector x by the real scalar 1/a
SUBROUTINE DRSCL( N, SA, SX, INCX ) INTEGER INCX, N DOUBLE PRECISION SA DOUBLE PRECISION SX( * )
DRSCL 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.
N (input) INTEGER The number of components of the vector x. SA (input) DOUBLE PRECISION The scalar a which is used to divide each component of x. SA must be >= 0, or the subroutine will divide by zero. SX (input/output) DOUBLE PRECISION array, dimension (1+(N-1)*abs(INCX)) The n-element vector x. INCX (input) 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 LAPACK auxiliary routine (version 3.2) April 2011 DRSCL(3lapack)