On 2 Nov 2015, at 15:57, Christopher Small <metasoar...@gmail.com> wrote:
> I'll just add that core matrix complex doesn't prevent you from using 
> rationals, as most of the math happens on real/imaginary matrix pairs. 
> However, any time you try to return a scalar value (not a matrix), it wraps 
> the result using the alanforr library, so you'd be potentially restricted 
> there, though I'm not sure if the alanforr library would automatically cast 
> or error out. If someone came up with another complex library, it probably 
> wouldn't be too hard to make that swappable, just as the underlying matrix 
> implantations are presently (in core.matrix.complex).
> 
The complex number library basically casts non-doubles to doubles.

Alan

> On Mon, Nov 2, 2015, 7:03 AM 'Alan Forrester' via Clojure 
> <clojure@googlegroups.com <mailto:clojure@googlegroups.com>> wrote:
> On 2 Nov 2015, at 13:11, Grahack <christophegrag...@gmail.com 
> <mailto:christophegrag...@gmail.com>> wrote:
> 
> > I'm resurrecting this thread in case there is something new that happened 
> > concerning complex numbers that was not logged here.
> > So was there some progress made?
> >
> > I also wanted to add that mixing rationals and complex wuold be super cool, 
> > like:
> >
> > (* 1/2 i) => i/2)
> 
> There is now a complex number library that  the Java commons-math3 Complex 
> library:
> 
> https://github.com/alanforr/complex/ <https://github.com/alanforr/complex/>.
> 
> This library does not mix rationals and complex since the underlying Java 
> library uses doubles.
> 
> Mike Anderson has written a complex matrix library:
> 
> https://github.com/mikera/core.matrix.complex 
> <https://github.com/mikera/core.matrix.complex>.
> 
> Alan
> 
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