On 30 September 2015 at 16:57, Michele Zaffalon <[email protected]> wrote:
> There is some literature supporting the opposite: > http://arxiv.org/pdf/1201.6035.pdf > > I know from experience that "x = inv(A)*b" gets answers wrong in places where "x = A \ b" gets them right. I show an example of this to my students every year (I don't feel like digging up my lecture notes right now). It is not simply about the condition number; a matrix inverse requires more arithmetic operations and machine error builds up. Daniel.
