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

Drotm() Sub Drotm ( N As  Long, X_I As  Double, Y_I As  Double, P() As  Double, Optional IncX As  Long = 1, Optional IncY As  Long = 1  ) Apply modified Givens plane rotation (BLAS 1) Purpose This routine applies the modified Givens plane rotation constructed by drotmg. Parameters [in] N Number of elements in vectors x and y. (If N <= 0, returns without computation) [in] X_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 = H*x(i) + H*y(i) (i = 1 to N) [in] Y_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 = H*y(i) - H*x(i) (i = 1 to N) [in] P() Array P(LP - 1) (LP >= 5) Rotation matrix H   P(0): -1, 0, 1 or -2.   P(1), P(2), P(3), P(4): H11, H21, H12, H22 values. [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 BLAS