I recently received an email asking for advice on applying to GSoC. I’m not
a GSoC mentor, but have previously been a GSoC student. I hope that by
sharing my answers here, I can help others who may have similar questions.
Also, if I get anything wrong, please correct me.
> I noticed the proj
Hi,
I was browsing Paul Invanov's blog today and came across this article:
https://pirsquared.org/blog/numfocus-concerns.html
We are part of NUMFOCUS, so I'd say it is important to at least be aware of
this. I do not have an opinion yet myself, but wanted to share.
Also, this is what attracted
from sympy import Expr, log, Abs, sqrt
from sympy.abc import x, u
class CustomExpr(Expr):
pass
expr = log(Abs(sqrt(1+2/x)-1))
print(expr.subs(x, u))
print(expr.subs(x, CustomExpr(u)))
The first one prints, as expected, log(|sqrt(1 + 2/u) - 1|)
But the second prints something different:
log(sqr
Hi Paul,
This is a bug. I assume that the result is mathematically correct but
it is not a good transformation of the expression.
Can you open a GitHub issue for this and link back to this mailing
list thread (and send the link to the issue back here as well)?
The problem is with Pow.conjugate
