exp4j
A tiny math expression evaluator for the Java programming language (by fasseg)
ExprTK
C++ Mathematical Expression Parsing And Evaluation Library https://www.partow.net/programming/exprtk/index.html (by ArashPartow)
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
exp4j
Posts with mentions or reviews of exp4j.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-04-22.
- Any library to find value of variable in single variable equations
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Better library for evaluating math expressions stored on a String
I've already found on the internet a one called exp4j capable to do that but I'd like to know other too. What do you get used to use for solving issues like this?
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String to mathematical expression with variables
I think this is what they’re referring to: https://github.com/fasseg/exp4j
ExprTK
Posts with mentions or reviews of ExprTK.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-04-22.
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A Cpp library to evaluate mathematical literal expressions dynamically
I have found many libraries that can evaluate mathematical expressions, e.g. this one: https://www.partow.net/programming/exprtk/index.html
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Better library for evaluating math expressions stored on a String
I have used https://github.com/ArashPartow/exprtk for this task, since it is cpp we also used on IOS, however in android we changed to exp4j since it requires less space and did the same job.
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What do I do if a repo only has a make file and I'm on windows?
For the specific example repo you cited, the project website also offers some preconfigured example MSVC solutions. You may find this much easier to get set up and running if using a Makefile is not a hard requirement.
- What are some projects that taught you a lot?
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How to calculate an expression that is stored in a string in C++
This ExprTk library looks promising: https://www.partow.net/programming/exprtk/index.html
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A boolean logic simulator written in c++ & opengl 3.3. This is a toy project I'm currently developing to help me learn c++ & opengl. No libraries used, apart from stb_image and glad.
Now there are lots of libraries out there for expression processing as well. I would recommend exprtk: https://github.com/ArashPartow/exprtk
- library for solving equations from string?
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Regular language input math operations
If your actual goal isn't to implement it yourself and you need it for something else, take a look at this library: https://github.com/ArashPartow/exprtk
What are some alternatives?
When comparing exp4j and ExprTK you can also consider the following projects:
TinyExpr - tiny recursive descent expression parser, compiler, and evaluation engine for math expressions
muparser - muparser is a fast math parser library for C/C++ with (optional) OpenMP support.
CGal - The public CGAL repository, see the README below
Eigen
GLM - OpenGL Mathematics (GLM)
OpenBLAS - OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
Boost.Multiprecision - Boost.Multiprecision
QuantLib - The QuantLib C++ library
ceval - A C/C++ library for parsing and evaluation of arithmetic expressions.
safe_numerics - Replacements to standard numeric types which throw exceptions on errors
Wykobi - Wykobi C++ Computational Geometry Library https://www.wykobi.com