Issue 4122 in sympy: Egyptian fractions

Status: New Owner: Labels: Type-Enhancement Priority-Medium NumberTheory New issue 4122 by lucasbro...@gmail.com: Egyptian fractions http://code.google.com/p/sympy/issues/detail?id=4122 Input a rational between 0 and 1, receive a list of the denominators of an Egyptian fraction expansion

Issue 4123 in sympy: Rational.__lt__ and friends needs to watch for nan

Status: Valid Owner: Labels: Type-Defect Priority-Medium New issue 4123 by smi...@gmail.com: Rational.__lt__ and friends needs to watch for nan http://code.google.com/p/sympy/issues/detail?id=4123 Mul(x,3,evaluate=False) 3*x Mul(nan,3,evaluate=False) Traceback (most recent call

Re: Issue 4123 in sympy: Rational.__lt__ and friends needs to watch for nan

Comment #1 on issue 4123 by asmeu...@gmail.com: Rational.__lt__ and friends needs to watch for nan http://code.google.com/p/sympy/issues/detail?id=4123 Not just NaN. The code assumes that any instance of Number has .p and .q. I think only NaN is showing up because everything else is

Issue 4124 in sympy: expand_complex(I*oo) gives nan

Status: Valid Owner: Labels: Type-Defect Priority-Medium WrongResult New issue 4124 by asmeu...@gmail.com: expand_complex(I*oo) gives nan http://code.google.com/p/sympy/issues/detail?id=4124 In [71]: expand_complex(I*oo) Out[71]: nan It should just give I*oo. This results in things like

[sympy] Numeric differentiation

Just wondeing about one thing. I have a function: https://lh6.googleusercontent.com/-9yLvDzYFsdU/UqM6nzBHj2I/ADA/X9vs1MVkWA8/s1600/CodeCogsEqn.png It can be differentiated, but no way to solve(== find break monotony points). So I'm about using numeric diff. Is there any implented

Re: [sympy] Re: Preventing an expression from evaluating

I wonder if we had a Hold class that takes arguments (class, args) that prints as class(*args, evaluate=False) might be a way to go and then have a `touch` or `release` function that converts Hold to class(*args) might be a way to go. Hold(Add, 3, 4) 3 + 4 touch(_) 7 -- You received this

Re: [sympy] Re: Stricter PEP8 requirements?

Am 05.12.2013 12:17, schrieb Sergey B Kirpichev: On Sun, Dec 01, 2013 at 03:03:57PM +0100, Joachim Durchholz wrote: Different people have different ideas about what good style is. Blanks before opening parentheses or not, how many indents to use, how many blanks per indent, docstring

[sympy] Introduction to Sympy Community About Issue #3385: Remove deprecated tsolve()

Hi All, I am Mohammed Faisal Anees, a second year undergrad at International Institute of Information Technology, Hyderabad (IIIT-H). I am new to the Open Source community, and since being comfortable with Python, I have chosen Sympy to begin with. I have read the documentation, and have set

Re: [sympy] Introduction to Sympy Community About Issue #3385: Remove deprecated tsolve()

Hello and welcome :-) I have read the documentation, and have set up the development environment according to the development workflow. After going throughthe Issues page, I have found issue #3385 https://code.google.com/p/sympy/issues/detail?id=3385 interesting and suitable for my level. I

[sympy] Starting out with a project

Hello everyone, I'm an undergraduate at BITS Pilani Goa Campus. I was going through the project ideas for last year and there was an idea under the physics part, about the implementation of the known analytical solutions to quantum models .(This is the idea I am talking about :

[sympy] Fixing Issue #1991

I have taken up this issue of replacing assert with raising exceptions in certain segments of the code. I have done part of the job. *Modules Fixed* : - examples/advanced -sympy/combinatorics -sympy/core -sympy/concrete -sympy/functions The link to the build is