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algebra

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cfunky
cfunky commented Mar 1, 2022

I noticed that CooMatrix::push_matrix does not threshold or detect zero elements in the input. Thus the resulting sparse matrix is more dense than it needs to be. By comparison, constructing a matrix using, e.g., CscMatrix::from, does detect entries that are exactly zero and does not include them in the resulting sparse matrix. If there isn't a rationale for the difference in behavior, may I s

good first issue documentation nalgebra-sparse

Powerful modern math library for PHP: Features descriptive statistics and regressions; Continuous and discrete probability distributions; Linear algebra with matrices and vectors, Numerical analysis; special mathematical functions; Algebra

  • Updated Dec 1, 2021
  • PHP
fingolfin
fingolfin commented Dec 7, 2021

In PR #4557 we added InstallEarlyMethod and used it to merge FirstOp and First. Something similar should be done for more operations, following the pattern outlined in PR #4557

Here is a partial lists of operations where it may make sense to do so:

  • in coll.gd
    • ListOp
    • SumOp
    • ProductOp
    • FilteredOp
    • NumberOp
    • ForAllOp
    • ForAnyOp
  • in list.gd
good first issue topic: library
WhiteBlackGoose
WhiteBlackGoose commented Dec 3, 2021

The package I want to suggest the idea to: AngouriMath.Interactive

The current logo includes Jupyter logo which is incorrect (since you can use that pkg in VSC Notebooks or in console etc.).

[Here](https://drive.google.com/file/d/1Y8TwuEjL0-YO2DCE6c_qs8TrhGJES_tL/view?usp=sharing

Minor bug Proposal Area: Interactive up-for-grabs

The motive behind Creating this repo is to feel the fear of mathematics and do what ever you want to do in Machine Learning , Deep Learning and other fields of AI

  • Updated Jan 6, 2020
  • Jupyter Notebook
mather

zzllrr mather(an offline tool for Math learning, education and research)小乐数学,离线可用的数学学习(自学或教学)、研究辅助工具。计划覆盖数学全部学科的解题、作图、演示、探索工具箱。目前是演示Demo版(抛转引玉),但已经支持数学公式编辑显示,部分作图功能,部分学科,如线性代数、离散数学的部分解题功能。最终目标是推动专业数学家、编程专家、教育工作者、科普工作者共同打造出更加专业级的Mather数学工具

  • Updated Aug 28, 2021
  • JavaScript
q.js
stewdio
stewdio commented Feb 1, 2022

In addition to the current acceptable arguments for Q.Matrix, it ought to accept a Template literal (Template string) as a solo argument to make it trivially easy for something like this:

var m = new Q.Matrix(`
    1 2 3 4
    5 6 7 8`)

This makes the task of creating arbitrary matrices much more human readable than passing nested Arrays, or even just a series of Arrays.

Enhancement Good first issue Q.Matrix Q.ComplexNumber
pylops
mrava87
mrava87 commented Feb 6, 2022

Feature

The IRLS algorithm can handle L1 norm for the data misfit term as well as L1 norm for the model. However, in some scenarios users may want to have both terms together (problem with outliers in the data and sparse model in some domain). The IRLS algorithm can be adapted to handle this scenario by writing the L1-L1 functional as an augmented system of equations and solve it using the c

enhancement good first issue

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