Radians Mode / Degrees Mode

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The tutorial consists of more than 200 live examples from 50 sections given separately for JAVA, C# and C++. Each of the examples can be copied and run on your own environment. In addition, mXparser provides an extensive collection of over 500 built-in math functions, expressions and symbols. Familiarize yourself with the scope and the syntax. Live testing is the best way to learn. Good luck! 🙂

Tutorial Math Collection API spec Download

Below is the code for JAVA, C# (the code for C# is almost identical) and C++. To copy the code, double-click inside the frame.

Case 1: Basic trigonometric function

Java/C# code
// JAVA: import org.mariuszgromada.math.mxparser.*;
// C#: using org.mariuszgromada.math.mxparser;
// ...
Expression eRad = new Expression("sin(π)");
Expression eDeg = new Expression("sin(180)");

/* Default behaviour */
mXparser.consolePrintln("----- Default behaviour ----- ");
mXparser.consolePrintln("Radians Mode = " + mXparser.checkIfRadiansMode() + ", Degrees Mode = " + mXparser.checkIfDegreesMode());
mXparser.consolePrintln(eRad.getExpressionString() + " = " + eRad.calculate());
mXparser.consolePrintln(eDeg.getExpressionString() + " = " + eDeg.calculate());

/* Set Degrees Mode */
mXparser.consolePrintln("----- Degrees Mode ----- ");
mXparser.setDegreesMode();
mXparser.consolePrintln("Radians Mode = " + mXparser.checkIfRadiansMode() + ", Degrees Mode = " + mXparser.checkIfDegreesMode());
mXparser.consolePrintln(eRad.getExpressionString() + " = " + eRad.calculate());
mXparser.consolePrintln(eDeg.getExpressionString() + " = " + eDeg.calculate());

/* Returning to Radians Mode */
mXparser.consolePrintln("----- Returning to Radians Mode ----- ");
mXparser.setRadiansMode();
mXparser.consolePrintln("Radians Mode = " + mXparser.checkIfRadiansMode() + ", Degrees Mode = " + mXparser.checkIfDegreesMode());
mXparser.consolePrintln(eRad.getExpressionString() + " = " + eRad.calculate());
mXparser.consolePrintln(eDeg.getExpressionString() + " = " + eDeg.calculate());
C++ code
#include "org/mariuszgromada/math/mxparser.hpp"
// ...
ExpressionPtr eRad = new_Expression("sin(π)");
ExpressionPtr eDeg = new_Expression("sin(180)");

/* Default behaviour */
mXparser::consolePrintln("----- Default behaviour ----- ");
mXparser_consolePrintln("Radians Mode = " + mXparser::checkIfRadiansMode() + ", Degrees Mode = " + mXparser::checkIfDegreesMode());
mXparser::consolePrintln(eRad->getExpressionString() + " = " + eRad->calculate());
mXparser::consolePrintln(eDeg->getExpressionString() + " = " + eDeg->calculate());

/* Set Degrees Mode */
mXparser::consolePrintln("----- Degrees Mode ----- ");
mXparser::setDegreesMode();
mXparser_consolePrintln("Radians Mode = " + mXparser::checkIfRadiansMode() + ", Degrees Mode = " + mXparser::checkIfDegreesMode());
mXparser::consolePrintln(eRad->getExpressionString() + " = " + eRad->calculate());
mXparser::consolePrintln(eDeg->getExpressionString() + " = " + eDeg->calculate());

/* Returning to Radians Mode */
mXparser::consolePrintln("----- Returning to Radians Mode ----- ");
mXparser::setRadiansMode();
mXparser_consolePrintln("Radians Mode = " + mXparser::checkIfRadiansMode() + ", Degrees Mode = " + mXparser::checkIfDegreesMode());
mXparser::consolePrintln(eRad->getExpressionString() + " = " + eRad->calculate());
mXparser::consolePrintln(eDeg->getExpressionString() + " = " + eDeg->calculate());
Code result
[mXparser-v.5.2.1] ----- Default behaviour ----- 
[mXparser-v.5.2.1] Radians Mode = true, Degrees Mode = false
[mXparser-v.5.2.1] sin(π) = 0.0
[mXparser-v.5.2.1] sin(180) = -0.8011526357338304
[mXparser-v.5.2.1] ----- Degrees Mode ----- 
[mXparser-v.5.2.1] Radians Mode = false, Degrees Mode = true
[mXparser-v.5.2.1] sin(π) = 0.05480366514878953
[mXparser-v.5.2.1] sin(180) = 0.0
[mXparser-v.5.2.1] ----- Returning to Radians Mode ----- 
[mXparser-v.5.2.1] Radians Mode = true, Degrees Mode = false
[mXparser-v.5.2.1] sin(π) = 0.0
[mXparser-v.5.2.1] sin(180) = -0.8011526357338304

Case 2: Inverse trigonometric function

Java/C# code
// JAVA: import org.mariuszgromada.math.mxparser.*;
// C#: using org.mariuszgromada.math.mxparser;
// ...
Expression e = new Expression("acos(-1)");

/* Default behaviour */
mXparser.consolePrintln("----- Default behaviour ----- ");
mXparser.consolePrintln("Radians Mode = " + mXparser.checkIfRadiansMode() + ", Degrees Mode = " + mXparser.checkIfDegreesMode());
mXparser.consolePrintln(e.getExpressionString() + " = " + e.calculate());

/* Set Degrees Mode */
mXparser.consolePrintln("----- Degrees Mode ----- ");
mXparser.setDegreesMode();
mXparser.consolePrintln("Radians Mode = " + mXparser.checkIfRadiansMode() + ", Degrees Mode = " + mXparser.checkIfDegreesMode());
mXparser.consolePrintln(e.getExpressionString() + " = " + e.calculate());

/* Returning to Radians Mode */
mXparser.consolePrintln("----- Returning to Radians Mode ----- ");
mXparser.setRadiansMode();
mXparser.consolePrintln("Radians Mode = " + mXparser.checkIfRadiansMode() + ", Degrees Mode = " + mXparser.checkIfDegreesMode());
mXparser.consolePrintln(e.getExpressionString() + " = " + e.calculate());
C++ code
#include "org/mariuszgromada/math/mxparser.hpp"
// ...
ExpressionPtr e = new_Expression("acos(-1)");

/* Default behaviour */
mXparser::consolePrintln("----- Default behaviour ----- ");
mXparser_consolePrintln("Radians Mode = " + mXparser::checkIfRadiansMode() + ", Degrees Mode = " + mXparser::checkIfDegreesMode());
mXparser::consolePrintln(e->getExpressionString() + " = " + e->calculate());

/* Set Degrees Mode */
mXparser::consolePrintln("----- Degrees Mode ----- ");
mXparser::setDegreesMode();
mXparser_consolePrintln("Radians Mode = " + mXparser::checkIfRadiansMode() + ", Degrees Mode = " + mXparser::checkIfDegreesMode());
mXparser::consolePrintln(e->getExpressionString() + " = " + e->calculate());

/* Returning to Radians Mode */
mXparser::consolePrintln("----- Returning to Radians Mode ----- ");
mXparser::setRadiansMode();
mXparser_consolePrintln("Radians Mode = " + mXparser::checkIfRadiansMode() + ", Degrees Mode = " + mXparser::checkIfDegreesMode());
mXparser::consolePrintln(e->getExpressionString() + " = " + e->calculate());
Code result
[mXparser-v.5.2.1] ----- Default behaviour ----- 
[mXparser-v.5.2.1] Radians Mode = true, Degrees Mode = false
[mXparser-v.5.2.1] acos(-1) = 3.141592653589793
[mXparser-v.5.2.1] ----- Degrees Mode ----- 
[mXparser-v.5.2.1] Radians Mode = false, Degrees Mode = true
[mXparser-v.5.2.1] acos(-1) = 180.0
[mXparser-v.5.2.1] ----- Returning to Radians Mode ----- 
[mXparser-v.5.2.1] Radians Mode = true, Degrees Mode = false
[mXparser-v.5.2.1] acos(-1) = 3.141592653589793

Case 3: Using units of angle being in radians mode

Java/C# code
// JAVA: import org.mariuszgromada.math.mxparser.*;
// C#: using org.mariuszgromada.math.mxparser;
// ...
Expression e1 = new Expression("sin(π)");
Expression e2 = new Expression("sin(π[rad])");
Expression e3 = new Expression("sin(180)");
Expression e4 = new Expression("sin(180[deg])");

mXparser.consolePrintln("Radians Mode = " + mXparser.checkIfRadiansMode() + ", Degrees Mode = " + mXparser.checkIfDegreesMode());
mXparser.consolePrintln(e1.getExpressionString() + " = " + e1.calculate());
mXparser.consolePrintln(e2.getExpressionString() + " = " + e2.calculate());
mXparser.consolePrintln(e3.getExpressionString() + " = " + e3.calculate());
mXparser.consolePrintln(e4.getExpressionString() + " = " + e4.calculate());
C++ code
#include "org/mariuszgromada/math/mxparser.hpp"
// ...
ExpressionPtr e1 = new_Expression("sin(π)");
ExpressionPtr e2 = new_Expression("sin(π[rad])");
ExpressionPtr e3 = new_Expression("sin(180)");
ExpressionPtr e4 = new_Expression("sin(180[deg])");

mXparser_consolePrintln("Radians Mode = " + mXparser::checkIfRadiansMode() + ", Degrees Mode = " + mXparser::checkIfDegreesMode());
mXparser::consolePrintln(e1->getExpressionString() + " = " + e1->calculate());
mXparser::consolePrintln(e2->getExpressionString() + " = " + e2->calculate());
mXparser::consolePrintln(e3->getExpressionString() + " = " + e3->calculate());
mXparser::consolePrintln(e4->getExpressionString() + " = " + e4->calculate());
Code result
[mXparser-v.5.2.1] Radians Mode = true, Degrees Mode = false
[mXparser-v.5.2.1] sin(π) = 0.0
[mXparser-v.5.2.1] sin(π[rad]) = 0.0
[mXparser-v.5.2.1] sin(180) = -0.8011526357338304
[mXparser-v.5.2.1] sin(180[deg]) = 0.0
Nuget – Package Manager (C#, F#, Visual Basic, …)

Install-Package MathParser.org-mXparser -Version 6.1.0

Nuget – .NET CLI

dotnet add package MathParser.org-mXparser --version 6.1.0

Nuget – Package Reference

<PackageReference Include="MathParser.org-mXparser" Version="6.1.0"/>

Maven – Dependency (Java, Kotlin, Scala, Groovy, …)

<dependency>
<groupid>
org.mariuszgromada.math</groupid>
<artifactid>
MathParser.org-mXparser</artifactid>
<version>
6.1.0</version>
</dependency>

Maven – Gradle

implementation 'org.mariuszgromada.math:MathParser.org-mXparser:6.1.0'

CMake – Dependency / FetchContent (C++, MSVC, LLVM/Clang, GNU/GCC, MinGW, MSYS2, WSL, Windows, Linux, Unix, MacOS)

include(FetchContent)
FetchContent_Declare(
MathParserOrgMxParser
GIT_REPOSITORY
https://github.com/mariuszgromada/MathParser.org-mXparser.git
GIT_TAG
v.6.1.0
SOURCE_SUBDIR CURRENT/cpp/lib
)
FetchContent_MakeAvailable(
MathParserOrgMxParser)
target_link_libraries(YourExecutable
MathParserOrgMxParser)

GitHub

git clone https://github.com/mariuszgromada/MathParser.org-mXparser

OTHER DOWNLOAD OPTIONS

Download latest release – v.6.1.0 Sagitara: .NET bin onlyDownload latest release – v.6.1.0 Sagitara: JAVA bin onlyDownload latest release – v.6.1.0 Sagitara: bin + doc

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SOURCE CODE

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