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asmeurer commented #15130
Kalevi Suominen
@jksuom
I don't think that the plotting of triangles and points has been implemented in SymPy. Some coding is needed for those.
Juan Luis Cano Rodríguez
@astrojuanlu
hi all! I see that SymPy participated in Google Code-In in 2011. perhaps @asmeurer was a mentor back then? how was the experience? the announcement has just been made for this year's edition https://opensource.googleblog.com/2018/08/announcing-google-code-in-2018.html
S.Y. Lee
@sylee957
I would like to test sphinx on my windows environment, but I couldn't find any guide for windows. Anyone with experience about this?
Kalevi Suominen
@jksuom
Maybe this would help with installation.
Coston
@XiantongPAN
There is 'Ellipse' in geometry module, but no 'Hyperbola'. If I'm going to make calculation with hyperbola, I should write my own code. Is this right?
Ayushman Koul
@ayushmankoul
Hello @jksuom since you have made an observation that plotting of triangles and points hasn't been implemented in SymPy yet.If you don't mind should I raise an issue about it and start writing code for it ?
Kalevi Suominen
@jksuom
I think you could do that.
Ayushman Koul
@ayushmankoul
Thank you sir @jksuom .I was going through Codebase if I am not wrong I need to write new method for triangles inside class Plot in plotting module ? Please guide me how should I proceed over it.
Kalevi Suominen
@jksuom
I would start by studying how matplotlib works and what it can do. Then I would try to create code for plotting a segment. That could be used to plot a triangle.
Ayushman Koul
@ayushmankoul
Aaron Meurer
@asmeurer
@Juanlu001 Google Code-In was a lot different back then. They've made a ton of changes to the program since then.
I will say when we participated it was a lot of effort on the mentors. Don't do it unless you have multiple mentors who can commit time to it during the contest period.
I think it's not as bad as 2011 because of some of the changes they've made, but as far as I can tell it's still a lot of work.
Aaron Meurer
@asmeurer
And also remember that the program is for kids (13-17 year olds).
If you do have the time to put into it I would say it's worth it, though. You can get some very smart kids out of the program.
ronanpaixao
@ronanpaixao
Hi guys! I'm having some trouble using display() in the Jupyter notebook:

import sympy
from sympy.core.evaluate import evaluate
from sympy import latex
from IPython.display import display
sympy.init_printing(use_latex='mathjax')

X, mu, sigma, n = sympy.symbols("\bar{X} \mu \sigma n")
with evaluate(False):
eq = (X-mu)/(sigma/sympy.sqrt(n))
display(eq)

import sympy
from sympy.core.evaluate import evaluate
from sympy import latex
from IPython.display import display
sympy.init_printing(use_latex='mathjax')

X, mu, sigma, n = sympy.symbols("\bar{X} \mu \sigma n")
with evaluate(False):
eq = (X-mu)/(sigma/sympy.sqrt(n))
display(eq)
More like it...
This gives a RecursionError
ronanpaixao
@ronanpaixao
Any ideas on where the problem is?
yashraj-code
@yashraj-code
Hi everyone my name is Yashraj Dhanuka pursuing B.tech in CSE 3rd year. I would like to contribute in the community .I know basic Python,c++,and Machine Learning. and yes particularly interested in maths too. Can anyone guide me on how to contribute to this community. ThankYou
yashraj-code
@yashraj-code
any mentors ?
Kalevi Suominen
@jksuom
Arnav
@nigamarnav
Hello guys! can anyone help me to find out the way how to contribute in this era as I am a newcomer.
Bunnyyyyy
@Bunnyyyyy
Hey guys, Please someone help me in better understanding of GSoC !
Aaron Meurer
@asmeurer
@ronanpaixao hard to say without seeing the traceback. Can you open an issue with the traceback (trim down the repeated lines first)
ronanpaixao
@ronanpaixao
@asmeurer Filed #15182
Bunnyyyyy
@Bunnyyyyy
Bunnyyyyy
@Bunnyyyyy
Malkhan Singh
@Malkhan52
Bunnyyyyy
@Bunnyyyyy
Malkhan Singh
@Malkhan52
@Bunnyyyyy I gave a talk in my institute (NITR) last week on How to start contributions in open source projects, ping me I can provide link of that slide.
Bunnyyyyy
@Bunnyyyyy
@Malkhan52 Sir, what do you mean by ping ?

@Bunnyyyyy there is a link attached to the top of this chat with information for people new to contributing: https://github.com/sympy/sympy/wiki/Introduction-to-contributing

"ping" means attract one's attention and in this case probably suggests that you send a private message to the person

Bunnyyyyy
@Bunnyyyyy
Thank you :)
Jason K. Moore
@moorepants
Is there something similar as @doctest_depends_on for normal test functions?, i.e. @test_depends_on('numpy') or something like that?
Kalevi Suominen
@jksuom
I don't think that there is. The issue is handled in code as e.g. in test_sympify:
numpy = import_module('numpy')

def test_issue_10295():
if not numpy:
skip("numpy not installed.")
Jason K. Moore
@moorepants
@jksuom Thanks. We should turn that into a decorator.
Ayushman Koul
@ayushmankoul
Hello @jksuom I hope you are doing well. As asked by you to go through how matplotlib works I went through it to know how to write code for plotting line segments.Now coming back to issue, if I am not wrong I need to write a new method for plotting line segment and triangles inside class Plot in plotting/plot module ? Please guide me so that I can proceed further to it.Thanks
Kalevi Suominen
@jksuom
It seems that most objects to be plotted are subclasses of BaseSeries.
Micah
@micahscopes
Hi there, I'd like to understand how best to compose multilinear maps of symbolic elements in sympy
so far I've been doing it the hard way
which is to make lists of multivariate polynomials, iterating over them and substituting, then sorting
I'm still a kindergartner at tensor algebra
but I'm learning
it seems like some kind of tensor representation would be ideal for this
so the specific objects I'm interested in currently are finite k-algebras, which I'm "harvesting" from sage
the core of each finite k-algebra is its product, which is a "bilinear map" $V \times V \rightarrow V$