SDSDOT Function
Purpose
Returns the dot product of two vectors plus a constant.
Library
BLAS Library (libblas.a)
FORTRAN Syntax
REAL FUNCTION SDSDOT(N,B,X,INCX,Y,INCY)
INTEGER N, INCX, INCY
REAL B, X(*), Y(*)
Purpose
The SDSDOT function computes
the sum of constant B and dot product of vectors X and Y.
Note:
Computation is performed in double precision.
Parameters
|
N |
On entry, N specifies the number of elements
in X and Y; unchanged on exit. |
|
B |
Scalar; unchanged on exit. |
|
X |
Vector of dimension at least (1 + (N-1) *
abs(INCX) ); unchanged on exit. |
|
INCX |
On entry, INCX specifies the increment for
the elements of X; INCX must
be greater than zero; unchanged on exit. |
|
Y |
Vector of dimension at least (1 + (N-1) *
abs(INCY) ); unchanged on exit. |
|
INCY |
On entry, INCY specifies the increment for
the elements of Y; INCY must
be greater than 0; unchanged on exit. |
Error Codes
For values of N <= 0, the
subroutine returns immediately.
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