Re: [Matlisp-users] No Invert Functions?

[Nicolas N. <Nic...@iw...>]

Nicolas Neuss <Nic...@iw...> writes:

> The problem with using only GESV and M/ is that it computes an LU
> decomposition (which is the major O(N^3) part of the work).

This is written badly.  The problem is that this decomposition cannot
be used again without GETRS.

>  To use it again (e.g. in a time-stepping scheme) you need GETRS.
> 
> Nicolas.