On Jan 10, 2015, at 18:22 , Jiahao Chen <jia...@mit.edu> wrote: > > On Sat, Jan 10, 2015 at 6:12 PM, Erik Schnetter <schnet...@gmail.com> wrote: > This may lead to problems with nans. For example, 1.0/(0.0, 0.0) is (inf, > nan), and 1.0/(inf,nan) is (0.0, nan); multiply by (1, im) yields (nan, nan), > and all information is lost. With a proper treatment, this would be (0.0, > 0.0) instead. > > We already have this problem. > > julia> 1.0/Complex(0.0, 0.0) > NaN + NaN*im > > (essentially #9531) > > I agree that (Inf, NaN) should be treated as a representation of complex > infinity. (Ref: #5234)
This will either require normalizing the result of complex operations, or normalizing the input. -erik -- Erik Schnetter <schnet...@gmail.com> http://www.perimeterinstitute.ca/personal/eschnetter/ My email is as private as my paper mail. I therefore support encrypting and signing email messages. Get my PGP key from http://pgp.mit.edu/.
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