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AIX Version 4.3 Base Operating System and Extensions Technical Reference, Volume 2
CDOTC or ZDOTC Function
Purpose
Returns the complex dot product of two vectors, conjugating the first.
Library
BLAS Library (libblas.a)
FORTRAN Syntax
COMPLEX FUNCTION CDOTC(N, X, INCX, Y, INCY)
INTEGER INCX, INCY, N
COMPLEX X(*), Y(*)
DOUBLE COMPLEX FUNCTION ZDOTC(N, X, INCX, Y, INCY)
INTEGER INCX, INCY, N
COMPLEX*16 X(*), Y(*)
Description
The CDOTC or ZDOTC function returns the complex dot product of two vectors, conjugating the first.
Parameters
N |
On entry, N specifies the number of elements in X and Y; 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; 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; unchanged on exit. |
Error Codes
For values of N <= 0, a value of 0 is returned.
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