DRSCL(3F) DRSCL(3F)
DRSCL - multiplie 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:
S
and SX(1+(i-1)*INCX) = x(i), 1< i<= n
DRSCL(3F) DRSCL(3F)
DRSCL - multiplie 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:
S
and SX(1+(i-1)*INCX) = x(i), 1< i<= n
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