[sympy] Introduction

Hi guys, my name is Abhinav sagar. I’m from India . I’m a mechanical engineering student at VIT Vellore, Years of programming with python: 3 years. Previous projects: I have done plenty of projects with python and implemented a lot of famous algorithms such as: Kosaraju Two Pass Algorithm

Re: [sympy] GSoC new Project Idea "Evolve Crypto module"

As I noted in #16162, it was educational purposes that drove the addition of this module in the first place so I mostly agree that additions should be few. On Monday, March 11, 2019 at 7:18:34 PM UTC-5, Aaron Meurer wrote: > > Maybe others will disagree with me, but I'd rather see things that c

[sympy] [RFC] diagonal/banded matrix construction

@GYeyosi and I have been working on a syntax for creating diagonal/banded matrices which has the following enhancments: Here is a reference using current syntax >>> diag(Matrix([1, 2]), 3) Matrix([ [1, 0], [2, 0], [0, 3]]) Changes include 1. an empty dictionary item, {}, is a directive to ret

Re: [sympy] Classical Mechanics: Generalize the Equation of MotionGeneration Classes

Hello, I don't really understand how the video is related to the Hamilton or Newton-Euler method? Regards, Arooshi Verma On Mon, 11 Mar 2019, 18:38 Raed Serag, wrote: > Hello Arooshi, > > Thanks for your interest, I’m a student and I’m seeking to join Sympy in > GSOC 2019 Internship, So I’m loo

Re: [sympy] GSoC new Project Idea "Evolve Crypto module"

Maybe others will disagree with me, but I'd rather see things that can be useful outside of just cryptography. For instance a module for elliptic curves could have uses outside of cryptography. It looks like your first three ideas are like this (I don't know what P-boxes and S-boxes are). Correct m

[sympy] Re: GSoC new Project Idea "Evolve Crypto module"

Just to clarify, I don't mean implementing the whole idea at one go. Break up the idea into various parts and open a PR for the simpler building blocks. On Tuesday, March 12, 2019 at 3:15:04 AM UTC+5:30, Arif Ahmed wrote: > > I would suggest you code up the simplest one out of your list of ideas

[sympy] Re: GSoC new Project Idea "Evolve Crypto module"

I would suggest you code up the simplest one out of your list of ideas and implement it. Then open a PR for it and get it reviewed and hopefully merged. It would be a good indicator that you are able to write code as per existing repository guidelines as well as understand the underlying mathem

[sympy] GSoC new Project Idea "Evolve Crypto module"

Hello, I wanted to discuss a new idea for evolving the crypto module. I am basically planning 4 main things out of which any 2 or 3 can be picked for this years GSoC: 1. Add block cipher including SPN ciphers, DES, AES, RC4 and modes of operations for each of them. Also create generalised

RE: [sympy] Gsoc Project idea " Efficient Equation of MotionGeneration with Python" discussion.

Well, representation theory is a part of mathematics which maps a matrix to a small representation which is easily computable than those big matrix. This is also related to block diagonalization. Otherwise Karatsuba fast multiplication and strassen’s algo can be used for reducing complexity from

Re: [sympy] Gsoc Project idea " Efficient Equation of Motion Generation with Python" discussion.

moorepants.info +01 530-601-9791 On Mon, Mar 11, 2019 at 11:44 AM Shiksha Rawat wrote: > Hello, > > I am Shiksha , a second-year undergrad from India. I have been > contributing to Sympy for more than a month now. While going through Gsoc > Ideas page, I found Efficient Equation of Motion Gene

Re: [sympy] Re: [DISCUSSION] Solvers

Thank you so much Yathartha for giving the latest updates. I am planning to complete the lambert first. I had added some reviews and comments over your PR for lambert. Please review them and let me know what you think. And i will focus on modular equations and set infrastructure after this. I wen

Re: [sympy] Symbolic symmyetric positive definite Matrix

Actually it looks like a lot of the logic is already there. For anyone interested in fixing this, we just need to add a refine handler for MatrixElement that handles symmetry. One already exists for Transpose >>> X = MatrixSymbol("X", n, m) >>> refine(Transpose(X), Q.symmetric(X)) X I opened http

Re: [sympy] Symbolic symmyetric positive definite Matrix

I don't think that exists yet, aside from the assumptions in the new assumptions Q.symmetric and Q.positive_definite. It would be useful to be able to bind those assumptions to the matrix object itself. Also ideally you would be able to put it under a "with assuming(Q.symmetric(q))" block (where q

[sympy] Gsoc Project idea " Efficient Equation of Motion Generation with Python" discussion.

Hello, I am Shiksha , a second-year undergrad from India. I have been contributing to Sympy for more than a month now. While going through Gsoc Ideas page, I found Efficient Equation of Motion Generation with Python

[sympy] Symbolic symmyetric positive definite Matrix

Hi, I was wondering how I can create symbolic symmetric positive definite (s.p.d.) Matrices. I would like to get a symbolic (symbolic in the Q-matrix) quadratic form def sospoly(x, varname): N = x.shape[0] Q = MatrixSymbol(varname, N, N) p = (x.T * Matrix(Q) * x)[0] return p, Q

RE: [sympy] Classical Mechanics: Generalize the Equation of MotionGeneration Classes

Hello Arooshi, Thanks for your interest, I’m a student and I’m seeking to join Sympy in GSOC 2019 Internship, So I’m looking for an idea and I have one as you can see, If you have seen the video here you can notice that I have worked in something like what I’m seeking for, and the only Mathemati

[sympy] Random Movement Generator

Hey All, In some games and graphics applications, there is a need to do some random movement in some defined pattern! Which means you may need to move some object in a random curve, but you need to define the pattern of the curve to oscillate up and down in some speed, for example, that's wh

[sympy] Classical Mechanics: Generalize the Equation of Motion Generation Classes

Hello, I read through the earlier work on the Generalization of the Equation of Motion Generation Classes ( https://github.com/sympy/sympy/pull/11431). I understood about the changes made to sympy/physics/mechanics/system. I would like to further work on the same. I know about the Newton-Euler f