That's a bizarre error – I cannot reproduce it either. In IEEE 754 arithmetic multiplication by 1.0 should be the identity for all finite numbers. Julia uses the same floating-point arithmetic that your hardware implements and which is the same as C, Fortran, Java, JavaScript, etc., so you should see exactly the same rounding in Julia as in all those other languages. If that's not the case something is very wrong with your Julia setup.
On Wed, Nov 19, 2014 at 2:47 PM, Intrinsic Audio <[email protected]> wrote: > I've found an interesting issue in Julia that, though it seems trivial in > the application I've given, is really messing up my code and my ability to > guarantee its performance. > > Apparently, 44099 * (1/1) == 44100, which in my book is a very massive > error. > > I wrote a resample() function for the project I'm working on, and I found > that rounding errors in Julia have made the language unacceptable to my > superiors. Is this a fundamental issue with Julia, or is there something I > can do to fix this? > > Here is a screenshot of a simple script that demonstrates this: > > http://i.imgur.com/mA9hpqw.png > > Why does this happen? >
