NCalcSync 5.3.0

dotnet add package NCalcSync --version 5.3.0                
NuGet\Install-Package NCalcSync -Version 5.3.0                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="NCalcSync" Version="5.3.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add NCalcSync --version 5.3.0                
#r "nuget: NCalcSync, 5.3.0"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install NCalcSync as a Cake Addin
#addin nuget:?package=NCalcSync&version=5.3.0

// Install NCalcSync as a Cake Tool
#tool nuget:?package=NCalcSync&version=5.3.0                

<div style="text-align:center"> <img src="NCalc.png" alt="NCalc" style="width:100px;"/> <h1>NCalc</h1> <a href="https://github.com/ncalc/ncalc/actions/workflows/build-test.yml"> <img src="https://img.shields.io/github/actions/workflow/status/ncalc/ncalc/build-test.yml" alt="GitHub Actions Workflow Status" /> </a> <a href="https://codecov.io/gh/ncalc/ncalc"> <img src="https://img.shields.io/codecov/c/github/ncalc/ncalc.svg" alt="Coverage" /> </a> <a href="https://nuget.org/packages/NCalcSync.signed"> <img src="https://img.shields.io/nuget/v/NCalcSync.signed.svg?label=nuget&color=004880" alt="NuGet" /> </a> <a href="https://nuget.org/packages/NCalcSync.signed"> <img src="https://img.shields.io/nuget/dt/NCalcSync.svg?color=004880" alt="NuGet Downloads" /> </a> <a href="https://discord.gg/TeJkmXbqFk"> <img src="https://img.shields.io/discord/1237181265426387005?color=5b62ef&label=discord" alt="Discord" /> </a> </div>

NCalc is a fast and lightweight expression evaluator library for .NET, designed for flexibility and high performance. It supports a wide range of mathematical and logical operations. NCalc can parse any expression and evaluate the result, including static or dynamic parameters and custom functions. NCalc targets .NET 8, .NET Standard 2.0 and NET Framework 4.8.

Docs

Need help or want to learn more? Check our docs.

Learn more

For additional information on the technique we used to create this framework please read this article.

Help

[!IMPORTANT] If you need help, please open an issue and include the expression to help us better understand the problem. Providing this information will aid in resolving the issue effectively.

Getting Started

If you want to evaluate simple expressions:

dotnet add package NCalcSync 

Want async support at your functions and parameters?

dotnet add package NCalcAsync 

Dependency Injection? We got you covered:

dotnet add package NCalc.DependencyInjection

Functionalities

Simple Expressions

var expression = new Expression("2 + 3 * 5");
Debug.Assert(17 == expression.Evaluate());

Evaluates .NET data types

Debug.Assert(123456 == new Expression("123456").Evaluate()); // integers
Debug.Assert(new DateTime(2001, 01, 01) == new Expression("#01/01/2001#").Evaluate()); // date and times
Debug.Assert(123.456 == new Expression("123.456").Evaluate()); // floating point numbers
Debug.Assert(true == new Expression("true").Evaluate()); // booleans
Debug.Assert("azerty" == new Expression("'azerty'").Evaluate()); // strings

Handles mathematical functional from System.Math

Debug.Assert(0 == new Expression("Sin(0)").Evaluate());
Debug.Assert(2 == new Expression("Sqrt(4)").Evaluate());
Debug.Assert(0 == new Expression("Tan(0)").Evaluate());

Evaluates custom functions

var expression = new Expression("SecretOperation(3, 6)");
expression.Functions["SecretOperation"] = (args) => {
    return (int)args[0].Evaluate() + (int)args[1].Evaluate();
};

Debug.Assert(9 == expression.Evaluate());

Handles unicode characters

Debug.Assert("経済協力開発機構" == new Expression("'経済協力開発機構'").Evaluate());
Debug.Assert("Hello" == new Expression(@"'\u0048\u0065\u006C\u006C\u006F'").Evaluate());
Debug.Assert("だ" == new Expression(@"'\u3060'").Evaluate());
Debug.Assert("\u0100" == new Expression(@"'\u0100'").Evaluate());

Define parameters, even dynamic or expressions

var expression = new Expression("Round(Pow([Pi], 2) + Pow([Pi2], 2) + [X], 2)");

expression.Parameters["Pi2"] = new Expression("Pi * [Pi]");
expression.Parameters["X"] = 10;

expression.DynamicParameters["Pi"] = _ => {
    Console.WriteLine("I'm evaluating π!");
    return 3.14;
};

Debug.Assert(117.07 == expression.Evaluate());

JSON Serialization

At .NET 8+, NCalc have built-in support to polymorphic JSON serialization using System.Text.Json.

const string expressionString = "{waterLevel} > 4.0";

var logicalExpression = LogicalExpressionFactory.Create(expressionString, ExpressionOptions.NoCache); //Created a BinaryExpression object.

var jsonExpression = JsonSerializer.Serialize(parsedExpression);

var deserializedLogicalExpression = JsonSerializer.Deserialize<LogicalExpression>(jsonExpression); //The object is still a BinaryExpression.

var expression = new Expression(deserializedLogicalExpression);

expression.Parameters = new Dictionary<string, object> {
    {"waterLevel", 4.0}
};

var result = expression.Evaluate();

Caching NCalc automatically cache the parsing of strings using a ConcurrentDictionary. You can also use our Memory Cache plugin.

Lambda Expressions

var expression = new Expression("1 + 2");
Func<int> function = expression.ToLambda<int>();
Debug.Assert(function()); //3

Parlot

Fast and lightweight parser creation tools by Sébastien Ros that NCalc uses at its parser.

PanoramicData.NCalcExtensions

Extension functions for NCalc to handle many general functions,
including string functions, switch, if, in, typeOf, cast etc.
Developed by David, Dan and all at Panoramic Data.

Jint

JavaScript Interpreter for .NET by Sébastien Ros, the author of NCalc library.
Runs on any modern .NET platform as it supports .NET Standard 2.0 and .NET 4.6.1 targets (and up).

NCalcJS

A TypeScript/JavaScript port of NCalc.

NCalc101

NCalc 101 is a simple web application that allows you to try out the NCalc expression evaluator, developed by Panoramic Data.

JJMasterData

JJMasterData is a runtime form generator from database metadata. It uses NCalc to evaluate expressions used in field visibility and other dynamic behaviors.

NCalc versioning

The project uses Nerdbank.GitVersioning tool to manage versions.
Each library build can be traced back to the original git commit. Read more about versioning here.

Discord Server

If you want to talk with us, get support or just get the latest NCalc news, come to our discord server.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (11)

Showing the top 5 NuGet packages that depend on NCalcSync:

Package Downloads
JJMasterData.Core

JJMasterData library to render JJMasterData's components.

PGCG.commonItems

Package Description

NCalc.DependencyInjection

NCalc is a mathematical expression evaluator for .NET. This assembly brings Dependency Injection support for NCalc.

PikTools.NonModelElements.Shared

Набор инстументов, содержащих общую логику приложения "Создание немоделируемых элементов"

Asgard.Yggdrasil

切换Mysql数据驱动到FreeSql.Provider.MySqlConnector

GitHub repositories (5)

Showing the top 5 popular GitHub repositories that depend on NCalcSync:

Repository Stars
squiggythings/WaveTracker
A free and open source music-making software for Windows. Uses wavetable synthesis and sampling to generate sounds.
AscensionGameDev/Intersect-Engine
Intersect provides a complete game development suite for creating 2d mmorpgs with no programming experience required!
egvijayanand/dotnet-maui-samples
.NET MAUI Samples
JJConsulting/JJMasterData
.NET CRUD generator library with Bootstrap support to create dynamic forms at runtime from a data dictionary.
naweed/MauiScientificCalculator
Scientific Calculator built using #dotnetmaui
Version Downloads Last updated
5.3.0 6,063 11/16/2024
5.2.11 22,616 10/25/2024
5.2.10 10,997 10/7/2024
5.2.9 13,201 9/26/2024
5.2.8 20,325 9/3/2024
5.2.7 1,237 9/2/2024
5.2.6 1,043 8/30/2024
5.2.5 1,455 8/29/2024
5.2.4 467 8/28/2024
5.2.3 3,087 8/23/2024
5.2.2 11,979 8/9/2024
5.2.1 4,606 8/6/2024
5.2.0 21,025 7/26/2024
5.1.0 6,124 7/12/2024
5.0.0 13,101 7/1/2024
4.4.0-alpha 195 6/10/2024
4.3.3 9,862 6/14/2024
4.3.2 2,539 6/12/2024
4.3.1 405 6/11/2024
4.3.0 372 6/10/2024
4.2.1 623 6/7/2024
4.2.0 1,449 6/4/2024
4.1.0 2,061 5/26/2024
4.0.0 8,390 5/21/2024
3.13.1 11,097 5/16/2024
3.13.0 3,968 5/6/2024
3.12.0 87,436 3/18/2024
3.11.0 93,959 2/26/2024
3.10.0 74,247 12/24/2023
3.9.0 24,551 12/5/2023
3.8.0 166,114 7/20/2023
3.7.0 15,037 7/14/2023
3.6.0 244,942 11/28/2022
3.5.0 111,232 6/10/2022
3.4.0 4,586 5/30/2022
3.2.0 1,065 5/26/2022
3.1.0 976 5/23/2022
3.0.0 945,367 12/22/2021
2.0.0 24,901 11/9/2020