dcabs1 dzasum dznrm2 zaxpy zcopy zdotc zdotc_sub zdotu zdotu_sub zdrot zdscal zrot zrotg zscal zswap

dznrm2() double dznrm2 ( int  n, doublecomplex  zx[], int  incx  ) ||x||2 (2-norm) (complex vector) (BLAS 1) Purpose This routine computes the Euclidean norm of a complex vector (2-norm). Returns Euclidean norm of a complex vector x (= sqrt(x^H*x)) (2-norm). Parameters [in] n Number of elements in vector x. (If n <= 0, returns 0) [in] zx[] Array zx[lzx] (lzx >= 1 + (n - 1)*incx) Input vector x. [in] incx Storage spacing between elements of x. (If incx <= 0, returns 0) Reference BLAS