Comment #1 on issue 3741 by skirpic...@gmail.com: nargs should return tuple
in all cases
http://code.google.com/p/sympy/issues/detail?id=3741
https://github.com/sympy/sympy/pull/2201
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Comment #3 on issue 3171 by skirpic...@gmail.com: direction doesn't affect
some limits
http://code.google.com/p/sympy/issues/detail?id=3171
Now it works in master:
In [3]: limit(1/(x-2),x,2,dir='-')
Out[3]: -∞
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Updates:
Status: Fixed
Comment #4 on issue 3171 by skirpic...@gmail.com: direction doesn't affect
some limits
http://code.google.com/p/sympy/issues/detail?id=3171
Fixed in this commit:
commit 68c851d171ad3e89ac16b00ac272f36e7f61b3b8
Author: Sai Nikhil tsnleg...@gmail.com
Date: Thu
Comment #1 on issue 3898 by smi...@gmail.com: sift
http://code.google.com/p/sympy/issues/detail?id=3898
sift comsumes and stores the entire iterable:
m = defaultdict(list)
for i in seq:
m[keyfunc(i)].append(i)
return m
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Comment #53 on issue 2482 by ondrej.c...@gmail.com: Stop bundling mpmath
http://code.google.com/p/sympy/issues/detail?id=2482
P.S. Just discovered this post:
http://vagabond.github.io/2013/06/21/z_packagers-dont-know-best/ I am
posting it here to lighten up the discussion a bit :), but the
Hi,
I have implemented a function for the product of a dense vector and
sparse matrix, please see the last commit of [1]. I have tried to shot two
things--
1. This is the first function in which I have tried to add support of
domains, I am not sure if it is done the right way.
2. I have
Related topic. Why does Basic have attributes like is_Rational? Shouldn't
that be under Expr?
There has also been talk of not using these in favor of isinstance(obj,
obj.func)
On Fri, Jun 21, 2013 at 12:24 AM, Chris Smith smi...@gmail.com wrote:
One of the solutions which Christopher Smith
Hello,
How do I expand products of square roots like this?
import sympy as sp
A1,A1 = sp.symbols('A1,A2', real=True, constant=True)
coef1 = sp.sqrt(1/(A1**2 + A2**2 + sp.sqrt(A1**4 - A1**2*A2**2 + A2**4)))
coef2 = sp.sqrt(1/(A1**2 + A2**2 - sp.sqrt(A1**4 - A1**2*A2**2 + A2**4)))
The issue is that sqrt(x)*sqrt(y) does not equal sqrt(x*y), unless x
and y are positive (see
http://docs.sympy.org/tutorial/tutorial/simplification.html#powers).
Unfortunately, your assumptions that A1 and A2 are real is not enough
for SymPy to deduce that the things under the square root are
Hi all
I've been searching just to check if what I want to do is feasible with
sympy. The thing is that I have an expression ('a/b+c/d') for which I want
to give several sets of values and for each set render the latex without
evaluating it. I don't know how to avoid automatic evaluation and
On Fri, Jun 21, 2013 at 5:48 PM, peibol pabe...@gmail.com wrote:
Hi all
I've been searching just to check if what I want to do is feasible with
sympy. The thing is that I have an expression ('a/b+c/d') for which I want
to give several sets of values and for each set render the latex without
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