Barry Smith <[email protected]> writes: > The only other way I see to do it is carry a validity flag around > with each vector and reduce that flag in all the vector reductions; > but this alone is not enough we would also have to have some > propagation code for things like zero pivot, for example setting a > validity flag in the Mat factor (saying the factor is not valid) and > propagating up those flags. We get all these things "for free" with > the Inf Nan approach.
Yeah, NaN/Inf is simple and I think it's okay. I just wanted to make sure that the debugging side-effect had been considered.
signature.asc
Description: PGP signature
