java.math.expression.parser
ExpressionEvaluator
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| java.math.expression.parser | ExpressionEvaluator | |
|---|---|---|
| 2 | 4 | |
| 35 | 562 | |
| - | - | |
| 6.1 | 4.9 | |
| 4 months ago | 7 months ago | |
| Java | C# | |
| Apache License 2.0 | MIT License |
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java.math.expression.parser
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is there premade function that gets mathematical Strings ( for example "(3+4+5)/sqr(20)") and returns result
Not built in to the Java language or SDK, but there's open source libraries such as https://github.com/sbesada/java.math.expression.parser that will do what you want.
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Can't figure out "java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Double" error
You might then want to use some specific math parser Java library. E.g. this sbesada/java.math.expression.parser.
ExpressionEvaluator
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parsing strings for calculation
If you don't want to roll your own, there are many existing libraries for this purpose.
- [OC] Options for Runtime (Dynamic) Scripting for .NET [C#, Scripting, Modding]
- Is there any easy way to call a variable through a string?
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okidoki - markdown editor with C# support
Yup it's in Blazor. For C# evaluation I've used ExpressionEvaluator. I'll probably replace it with Microsoft.CodeAnalysis.CSharp.Scripting library but I had some issues when i try to run it on WASM. I guess it's related to this issue
What are some alternatives?
aviatorscript - A high performance scripting language hosted on the JVM.
Roslyn - The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
ExprTK - C++ Mathematical Expression Parsing And Evaluation Library https://www.partow.net/programming/exprtk/index.html
Calcpad - Free and open source software for mathematical and engineering calculations.
JavaParser - Java 1-17 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.
MathParser.org-mXparser - Math Parser Java Android C# .NET/MONO (.NET Framework, .NET Core, .NET Standard, .NET PCL, Xamarin.Android, Xamarin.iOS) CLS Library - a super easy, rich and flexible mathematical expression parser (expression evaluator, expression provided as plain text / strings) for JAVA and C#. Main features: rich built-in library of operators, constants, math functions, user defined: arguments, functions, recursive functions and general recursion (direct / indirect). Additionally parser provides grammar and internal syntax checking.
YoowzxCalc - .NET library for processing of mathematical expressions developed with emphasis on performance and flexibility of use.
water-shader-unity - Simulation of water in Unity
DynamicExpresso - C# expressions interpreter
fast-member - Automatically exported from code.google.com/p/fast-member
Westwind.Scripting - Small C# library to provide dynamic runtime code compilation from source code for code and expressions execution