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

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

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

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