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Math Parser: Java, C#, C++, Kotlin, Android, and all .NET platforms
...Well documented. MathParser.org-mXparser is an open-source mathematical expressionparser and evaluator for Java and .NET, supporting complex calculations and custom functions.
Mathexpressionparser and evaluator written in Scala. Usable from Java (Sun JRE 1.6) Provides float, integral, boolean and vector data types, some string processing support. Variables may be defined internally or im- and exported through a binding.
Currently, this project consists of a pure javamathexpressionparser optimized for repeated evaluation. Development of an interactive 3D math visualization application based on this parser is planned for the future.
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Expression4J (MathExpressionParser) is a java framework used to manage mathematic expression stored in String object like "f(x,b)=2*x-cos(b)" or "g(x,y)=f(y,x)*-2". Expression gramar can be define by user (add new operator or type ...)
Impression is the flexible and extensible parser of mathematical expressions written in Java. It supports user defined
operators, single or multi parameter functions and unlimited number
of parameters. It is designed to use with numerical methods.