Dzasum Dznrm2 Zaxpy Zcopy Zdotc Zdotu Zdrot Zdscal Zrot Zrotg Zscal Zswap

Zrot() Sub Zrot ( N As  Long, ZX_I As  Complex, ZY_I As  Complex, C As  Double, ZS As  Complex, Optional IncX As  Long = 1, Optional IncY As  Long = 1  ) Applies Givens plane rotation (complex vector) (BLAS 1) Purpose This routine applies the Givens plane rotation constructed by Zrotg. Parameters [in] N Number of elements in vectors x and y. (If N <= 0, returns without computation) [in] ZX_I An element X(I) of the array X(). [in] Starting from this location, vector x is stored with element spacing IncX. [out] Starting from this location, vector x after rotation is stored with element spacing IncX.   x(i) after rotation = c*x(i) + s*y(i) (i = 1 to N) [in] ZY_I An element Y(I) of the array Y(). [in] Starting from this location, vector y is stored with element spacing IncY. [out] Starting from this location, vector y after rotation is stored with element spacing IncY.   y(i) after rotation = -conjg(s)*x(i) + c*y(i) (i = 1 to N) [in] C c (cosine) value. [in] ZS s (sine) value. [in] IncX (Optional) Element spacing of vector x in the array X(). (default = 1) [in] IncY (Optional) Element spacing of vector y in the array Y(). (default = 1) Reference LAPACK