F06KJF updates the Euclidean norm of complex vector in scaled form.
-element complex vector
, and real scalars
returns updated values
F06KJF is designed for use in the safe computation of the
Euclidean norm of a complex vector, without unnecessary overflow or destructive underflow. An initial call to F06KJF
may be followed by further calls to F06KJF and finally a call to F06BMF
to complete the computation. Multiple calls of F06KJF may be needed if the elements of the vector cannot all be accessed in a single array X