Dasum Dasum_sub Daxpy Dcopy Ddot Ddot_sub Dnrm2 Dnrm2_sub Drot Drotg Drotm Drotmg Dscal Dswap

Dnrm2_sub() Sub Dnrm2_sub ( Ret As  Double, N As  Long, X_I As  Double, Optional IncX As  Long = 1  ) ||x||2 (2-norm) (BLAS 1) (Subroutine version) Purpose Computes the Euclidean norm of a vector (2-norm). Parameters [out] Ret Euclidean norm of a vector x (= sqrt(x^T*x)) (2-norm). [in] N Number of elements in vector x. (If N <= 0, returns 0) [in] X_I An element X(I) of the array X(). Starting from this location, vector x is stored with element spacing IncX. [in] IncX (Optional) Element spacing of vector x in array X(). (If IncX <= 0, returns 0) (default = 1) Reference BLAS