D1a3b : $L_{2}$ (Euclidean norm)

F06BMF	Compute Euclidean norm from scaled form
F06BNF	Compute square root of $(a^{2} + b^{2})$ , real $a$ and $b$
F06EJF	Compute Euclidean norm of real vector
F06FJF	Update Euclidean norm of real vector in scaled form
F06FKF	Compute weighted Euclidean norm of real vector
F06JJF	Compute Euclidean norm of complex vector
F06KJF	Update Euclidean norm of complex vector in scaled form

D1a3b : L2 (Euclidean norm)