sympy/sympy

A computer algebra system written in pure Python http://sympy.org/ . To get started to with contributing https://github.com/sympy/sympy/wiki/Introduction-to-contributing

Aaron Meurer

@asmeurer

I usually already have people's fork as a remote anyway when I download there code. You just have to make sure to add the ssh url so you can push to it

You can probably push to the https url too I don't know

Coston

@XiantongPAN

@jksuom thanks, but what I want is to plot a geometry entity like line, point or circle. Is there any directly way to plot them?

Kalevi Suominen

@jksuom

I'm not sure what you mean by "directly", but if e is a geometric entity defined by an equation, then I would plot it by plot_implicit(e.equation()).

Coston

@XiantongPAN

thanks a lot,
'''
plot_implicit(e.equation())
'''
works very well in Line, Circle or Ellipse. But it can not draw a Point. Is there a way to draw the Point(like in the software geogebra)

plot_implicit(e.equation())

also, Triangle has no attribute 'equation'

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

Okay I will start with maplotlib to know about its functionality.Thank You @jksuom

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

@yashraj-code This should help you getting started: https://github.com/sympy/sympy/wiki/Introduction-to-contributing.

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

Any mentor up here ?.....Please help me in better understanding of GSoC !

Bunnyyyyy

@Bunnyyyyy

Any mentors ?, Please reply.

Malkhan Singh

@Malkhan52

@Bunnyyyyy https://www.quora.com/How-do-I-prepare-for-GSOC-2018-as-a-complete-beginner-from-now

This may help you

Bunnyyyyy

@Bunnyyyyy

Thanks, So how can I contribute to sympy ?.... Please help me !

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 ?

V Gladkova

@valglad

@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

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