Have you played around with GAP or the Mathematica group functions? I know
GAP allows you to create abstract (non-permutation) groups. It would be a
good place to look for ideas.
Like I said earlier I was considering doing this as a GSoC project myself
if I had time. I'm still interested in
I think it's a quite ugly to see
2
x
I'd much rather have
x²
Subscripts for numerical powers would make a lot of simple expressions
prettier, I think. We'd still have the current syntax for more complicated
expressions.
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The current problem I'm working on it creating a better density function
for transformations of single random variables in sympy.stats. I'd like to
be able to do transform a random variable X and change its interval
expr = X**2 # Or exp(X) or (X + mu)/sigma or anything...
I =
It would be nice if we could have variables take an interval as an input
argument, to replace or augment the current system of is_something flags.
Say,
x = Symbol('x', domain=Interval(0, oo))
x.is_positive
True
x.is_real
True
x.is_bounded
False
The variable x would carry around its
