== Quote from Andrei Alexandrescu ([email protected])'s article > dsimcha wrote: > > I've been thinking about where a Rational struct could lead, and realized > > that > > the next step is to give D some capabilities for dealing with symbols. For > > example, it would be nice to have something like: > > > > auto foo = symRational!SomeBigInt("1 / e + pi / 2 + G"); > > // Do a whole bunch of manipulations on foo. > > > > writeln(foo); // Symbolic expression. > > writeln(toReal(foo, constVal("G", 6e-11), constVal("pi", 3.14), > > constVal("e", 2.718)); > > > > Of course, now we're starting to talk about building a basic computer > > algebra > > system into Phobos, or at least into some stand-alone lib. While we clearly > > don't have the manpower to do a "real" CAS, some basic CAS-like capabilities > > would be nice. > What's CAS? > Andrei
CAS = computer algebra system. Basically, it's a system capable of doing math symbolically as opposed to just numerically.
