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20 votes
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Free alternative to step-by-step-solution feature of Wolfram|Alpha Pro?

Another great alternative is: https://www.symbolab.com/ It has also got a premium area, but its step-by-step solutions are free. Example Screenshot:
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  • 316
15 votes

Free alternative to step-by-step-solution feature of Wolfram|Alpha Pro?

I know this isn't free, but the Wolfram Alpha mobile phone app has a one-time cost of $2.99 (at least on Android) and offers step-by-step solutions without needing a Pro account.
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  • 251
9 votes
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WYSIWYG Geometry Tool

You can use GeoGebra: Free (+ portable version available) Works with Windows/Mac/Linux (even Android/iPhone/Windows Phone as well as in Google Chrome) has some Measurement Tools
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8 votes

Free alternatives to Matlab that run on Linux?

Take a look at Julia: http://julialang.org/ Julia is designed for numerical scientific work, including interactive work. It has a good quality notebook interface available like Mathematica and Sage. ...
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  • 547
7 votes
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Polyhedron visualisation

I would like to recommend free MATLAB based software that implements a new visualization technique for polyhedra. It is called "boundary interval method", and its primary purpose is to depict ...
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6 votes

Wysiwyg for math equations

You could use MathJax. It's a free, opensource, purely Javascript library for rendering math equations. Stack Exchange uses it (that's how I heard of it). It supports input through LaTeX and MathML ...
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  • 204
6 votes

Free alternatives to Matlab that run on Linux?

If you don't need exact compatibility with Matlab, Freemat is an option. http://freemat.sourceforge.net/ It can be quite fast, as it uses LLVM as a JIT compiler. http://freemat-blog.blogspot.com/...
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6 votes

Free alternative to step-by-step-solution feature of Wolfram|Alpha Pro?

One good alternative is: http://gamma.sympy.org/ It doesn't show steps for factoring but it does show steps for more complicated things in Calculus like derivatives and integrals.
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6 votes

Open Source alternative to Maple and Mathematica

Maxima is a system for the manipulation of symbolic and numerical expressions. The Maxima source code can be compiled on many systems, including Windows, Linux, and MacOS X. The source code for all ...
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6 votes
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Reverse graph visualization

This can be done with OpenCV and some custom code in C or python, (it is not a very common requirement). The answers to this question do a great job of discussing how to go about this in C. For a ...
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6 votes

Free mobile alternative to step-by-step-solution feature of Wolfram Alpha Pro?

SymPy Gamma is a free web application based on SymPy. It returns step-by-step solutions for some types of high school / college math problems, for example: Find the derivative of x*sin(x)**2 ...
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5 votes

Math equations software for 3D plotting

You can use GNU Octave: free works with Windows/Macintosh/Linux has a GUI since Octave 3.8
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5 votes

Looking for a collaborative whiteboard app

Not quite a collaborative whiteboard but a couple of resources that I think will be invaluable in the distance learning/teaching field. All of them are free and cross platform. Google Docs allows ...
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5 votes
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Open Source alternative to Maple and Mathematica

SymPy I've been really liking the SymPy in Julia. I haven't used the underlying module in Python, much. Using it within in IJulia/IPython, for a Mathematica notebook like experience. It is ...
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5 votes
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Simple Non-Linear Programming Software

You can use GNU Octave: gratis cross-platform support nonlinear optimization
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5 votes

A number cruncher software that can work with very large numbers

A quick check with python3.6 64 bit: In [13]: n = 1234*10**40000 In [14]: len(str(n)) Out[14]: 40004 In [15]: m = n + 1 In [16]: m-n Out[16]: 1 If you need really big integer numbers with no loss ...
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4 votes
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2d mathematics equation grapher for Windows

You can use GeoGebra: Free (+ portable version available) Since GeoGebra 4 it's possible to change the grid type to polar Works with Windows/Mac/Linux (even Android/iPhone/Windows Phone as well as ...
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4 votes

Basic algebra exercise solver

Some of the questions you posted can be solved by linear simultaneous equations technique. Sequalator is a software which can solve linear simultaneous equations for you. It can not only tackle ...
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4 votes
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C/C++ library for solving nonlinear systems of equations

Reference: What good libraries are there for solving a system of non-linear equations in C++? I'm assuming you mean free software. Referencing the above stackoverflow question, you could use: ...
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  • 206
4 votes

Image to text converter

There is a whole field of software called OCR or optical character recognition. Omnipage regular or Pro from nuance has always worked well for me. It can usually handle anything I throw at it. If ...
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  • 1,621
4 votes

Reverse graph visualization

Mathematica has a built-in function called MorphologicalGraph. The open source image analysis software Fiji can do this too. The rough steps are: Smoothen the image if needed Threshold the image to ...
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  • 547
4 votes
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Software for doing math “by hand”

As with so many things internet, it's all a matter of getting the right search terms. I used “unlimited canvas app iphone,” but then changed it to “infinite canvas app iphone.” The results are many ...
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  • 1,918
4 votes

Software based calculator that can handle millions of digits

If you don't mind using your browser and the Internet, Wolfram Alpha is a good choice. It's free to use and handles arbitrary-precision numbers.
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  • 817
3 votes
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Java library to transform a math formula into an AST

Math.js The JavaScript part “Math.js is an extensive math library for JavaScript and Node.js.” — Project readme It provides a parse() function. Example using the NodeJS environment: var ...
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  • 2,802
3 votes

Real time interactive whiteboard for tutoring math

I would suggest taking a look at iPython Notebooks and possibly coLabatory: All your graphing requirements should be met by the plotting functions available Collaboration via Google Docs Results ...
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3 votes

Software/service to MANUALLY convert technical PDFs into EPUB/Kindle format?

My recommendation: Calibre Multi-platform Free Can be automated through command line There's this easy-to-follow guide on how to use it on How-to Geek. Tests with Math objects This is with a ...
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3 votes

A software that helps in building up the calculation ability?

For very basic arithmetic, (aimed at kids), there is tux maths but it might be a little simple for what you are looking for - you don't specify an age group or ability level.
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3 votes

what is the graphing software that can plot points?

If you are just playing about with graphing you can't go much wrong using Gnuplot. Free - Gratis & Open Source Small & Portable Cross Platform Linux, OS/2, MS Windows, OSX, VMS, and many ...
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3 votes

what is the graphing software that can plot points?

You can use GeoGebra: Free (+ portable version available) Works with Windows/Mac/Linux (even Android/iPhone/Windows Phone as well as in Google Chrome) Points and vectors may be entered via Input Bar ...
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