Calculation Steps Register

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The tutorial consists of more than 200 live examples from 50 sections. 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, the code for C# is almost identical. To copy the code, double-click inside the frame.

Calculation is a multi-step process and the CalculationStepsRegister class provides a register to store all the steps as a collection of CalculationStepRecord, also done in a recursive way.

Case 1: Simple Expression

// JAVA: import org.mariuszgromada.math.mxparser.*;
// C#: using org.mariuszgromada.math.mxparser;
// ...
Expression e = new Expression("2*(3+4)+5");
CalcStepsRegister calcStepsRegister = new CalcStepsRegister();

mXparser.consolePrintln(e.getExpressionString() + " = " + e.calculate(calcStepsRegister));
mXparser.consolePrintln("----");

/* Printing content of all the calculation steps */
for (CalcStepRecord step : calcStepsRegister.calcStepRecords)
	mXparser.consolePrintln(step.content);

[mXparser-v.5.2.1] 2*(3+4)+5 = 19.0
[mXparser-v.5.2.1] ----
[mXparser-v.5.2.1] 2*(3+4)+5
[mXparser-v.5.2.1] 2*(7)+5
[mXparser-v.5.2.1] 14+5
[mXparser-v.5.2.1] 19

Case 2: Dependent User Argument

// JAVA: import org.mariuszgromada.math.mxparser.*;
// C#: using org.mariuszgromada.math.mxparser;
// ...
Argument x = new Argument("x", "2*(3+4)+5");
CalcStepsRegister calcStepsRegister = new CalcStepsRegister();
mXparser.consolePrintln(x.getArgumentName() + " = " + x.getArgumentValue(calcStepsRegister));
mXparser.consolePrintln("----");

/* Printing a bit more just than the steps content */
mXparser.consolePrintln("calcStepsRegister.argumentNameStart = " + calcStepsRegister.argumentNameStart);
mXparser.consolePrintln("calcStepsRegister.expressionStringStart = " + calcStepsRegister.expressionStringStart);
mXparser.consolePrintln("calcStepsRegister.result = " + calcStepsRegister.result);
mXparser.consolePrintln("calcStepsRegister.computingTime = " + calcStepsRegister.computingTime);
mXparser.consolePrintln("----");

for (CalcStepRecord step : calcStepsRegister.calcStepRecords)
	mXparser.consolePrintln(step.numberGroupWithin + ". " + step.content);

[mXparser-v.5.2.1] x = 19.0
[mXparser-v.5.2.1] ----
[mXparser-v.5.2.1] calcStepsRegister.argumentNameStart = x
[mXparser-v.5.2.1] calcStepsRegister.expressionStringStart = 2*(3+4)+5
[mXparser-v.5.2.1] calcStepsRegister.result = 19.0
[mXparser-v.5.2.1] calcStepsRegister.computingTime = 0.083
[mXparser-v.5.2.1] ----
[mXparser-v.5.2.1] 1. 2*(3+4)+5
[mXparser-v.5.2.1] 2. 2*(7)+5
[mXparser-v.5.2.1] 3. 14+5
[mXparser-v.5.2.1] 4. 19

Case 3: User Function

// JAVA: import org.mariuszgromada.math.mxparser.*;
// C#: using org.mariuszgromada.math.mxparser;
// ...
Function f = new Function("f(x) = x*(2*(3+4)+5)");
CalcStepsRegister calcStepsRegister = new CalcStepsRegister();
f.setArgumentValue(0, 2);
mXparser.consolePrintln(f.getFunctionName() + " = " + f.calculate(calcStepsRegister));
mXparser.consolePrintln("----");

/* Printing a bit more just than the steps content - adding step type */
mXparser.consolePrintln("calcStepsRegister.functionNameStart = " + calcStepsRegister.functionNameStart);
mXparser.consolePrintln("calcStepsRegister.expressionStringStart = " + calcStepsRegister.expressionStringStart);
mXparser.consolePrintln("calcStepsRegister.result = " + calcStepsRegister.result);
mXparser.consolePrintln("calcStepsRegister.computingTime = " + calcStepsRegister.computingTime);
mXparser.consolePrintln("----");

for (CalcStepRecord step : calcStepsRegister.calcStepRecords)
	mXparser.consolePrintln(step.type + " " + step.numberGroupWithin + ". " + step.content);

[mXparser-v.5.2.1] f = 38.0
[mXparser-v.5.2.1] ----
[mXparser-v.5.2.1] calcStepsRegister.functionNameStart = f
[mXparser-v.5.2.1] calcStepsRegister.expressionStringStart = x*(2*(3+4)+5)
[mXparser-v.5.2.1] calcStepsRegister.result = 38.0
[mXparser-v.5.2.1] calcStepsRegister.computingTime = 0.106
[mXparser-v.5.2.1] ----
[mXparser-v.5.2.1] Function 1. x*(2*(3+4)+5)
[mXparser-v.5.2.1] Function 2. 2*(2*(7)+5)
[mXparser-v.5.2.1] Function 3. 2*(14+5)
[mXparser-v.5.2.1] Function 4. 2*(19)
[mXparser-v.5.2.1] Function 5. 38

Case 4: Expression referencing User Argument and User Function

// JAVA: import org.mariuszgromada.math.mxparser.*;
// C#: using org.mariuszgromada.math.mxparser;
// ...

public static String repeatString(String str, int times) {
	StringBuilder result = new StringBuilder();
	for (int i = 0; i < times; i++)
		result.append(str);
	return result.toString();
}
// ...
Argument x = new Argument("x", "2rList(2,1,3,5,4)");
Argument y = new Argument("y = 2*x", x);
Argument z = new Argument("z = 3*y/x", x, y);
Function f = new Function("f(a,b) = a*b");
CalcStepsRegister calcStepsRegister = new CalcStepsRegister();

Expression e = new Expression("f(x,y)+z+(x*y)/z", x, y, z, f);
mXparser.consolePrintln(e.getExpressionString() + " = " + e.calculate(calcStepsRegister));
mXparser.consolePrintln("----");

/* Printing a bit more just than the steps content - adding step type */
for (CalcStepRecord step : calcStepsRegister.calcStepRecords)
	mXparser.consolePrintln(step.numberGroup + "." + step.numberGroupWithin + " " + repeatString("   ", step.numberGroup - 1) + step.type + " " + step.content);
mXparser.consolePrintln("----");

/* Using built-in console print of steps register */
calcStepsRegister.consolePrint();

[mXparser-v.5.2.1] f(x,y)+z+(x*y)/z = 134.0
[mXparser-v.5.2.1] ----
[mXparser-v.5.2.1] 1.1 Expression f(x,y)+z+(x*y)/z
[mXparser-v.5.2.1] 2.1    Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 2.2    Argument 2*5
[mXparser-v.5.2.1] 2.3    Argument 10
[mXparser-v.5.2.1] 1.2 Expression f(10,y)+z+(x*y)/z
[mXparser-v.5.2.1] 2.1    Argument 2*x
[mXparser-v.5.2.1] 3.1       Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 3.2       Argument 2*3
[mXparser-v.5.2.1] 3.3       Argument 6
[mXparser-v.5.2.1] 2.2    Argument 2*6
[mXparser-v.5.2.1] 2.3    Argument 12
[mXparser-v.5.2.1] 1.3 Expression f(10,12)+z+(x*y)/z
[mXparser-v.5.2.1] 2.1    Argument 3*y/x
[mXparser-v.5.2.1] 3.1       Argument 2*x
[mXparser-v.5.2.1] 4.1          Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 4.2          Argument 2*5
[mXparser-v.5.2.1] 4.3          Argument 10
[mXparser-v.5.2.1] 3.2       Argument 2*10
[mXparser-v.5.2.1] 3.3       Argument 20
[mXparser-v.5.2.1] 2.2    Argument 3*20/x
[mXparser-v.5.2.1] 3.1       Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 3.2       Argument 2*5
[mXparser-v.5.2.1] 3.3       Argument 10
[mXparser-v.5.2.1] 2.3    Argument 3*20/10
[mXparser-v.5.2.1] 2.4    Argument 60/10
[mXparser-v.5.2.1] 2.5    Argument 6
[mXparser-v.5.2.1] 1.4 Expression f(10,12)+6+(x*y)/z
[mXparser-v.5.2.1] 2.1    Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 2.2    Argument 2*2
[mXparser-v.5.2.1] 2.3    Argument 4
[mXparser-v.5.2.1] 1.5 Expression f(10,12)+6+(4*y)/z
[mXparser-v.5.2.1] 2.1    Argument 2*x
[mXparser-v.5.2.1] 3.1       Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 3.2       Argument 2*2
[mXparser-v.5.2.1] 3.3       Argument 4
[mXparser-v.5.2.1] 2.2    Argument 2*4
[mXparser-v.5.2.1] 2.3    Argument 8
[mXparser-v.5.2.1] 1.6 Expression f(10,12)+6+(4*8)/z
[mXparser-v.5.2.1] 2.1    Argument 3*y/x
[mXparser-v.5.2.1] 3.1       Argument 2*x
[mXparser-v.5.2.1] 4.1          Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 4.2          Argument 2*2
[mXparser-v.5.2.1] 4.3          Argument 4
[mXparser-v.5.2.1] 3.2       Argument 2*4
[mXparser-v.5.2.1] 3.3       Argument 8
[mXparser-v.5.2.1] 2.2    Argument 3*8/x
[mXparser-v.5.2.1] 3.1       Argument 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] 3.2       Argument 2*3
[mXparser-v.5.2.1] 3.3       Argument 6
[mXparser-v.5.2.1] 2.3    Argument 3*8/6
[mXparser-v.5.2.1] 2.4    Argument 24/6
[mXparser-v.5.2.1] 2.5    Argument 4
[mXparser-v.5.2.1] 1.7 Expression f(10,12)+6+(4*8)/4
[mXparser-v.5.2.1] 2.1    Function a*b
[mXparser-v.5.2.1] 2.2    Function 120
[mXparser-v.5.2.1] 1.8 Expression 120+6+(4*8)/4
[mXparser-v.5.2.1] 1.9 Expression 120+6+(32)/4
[mXparser-v.5.2.1] 1.10 Expression 120+6+8
[mXparser-v.5.2.1] 1.11 Expression 126+8
[mXparser-v.5.2.1] 1.12 Expression 134
[mXparser-v.5.2.1] ----
[mXparser-v.5.2.1] CalcStepsRegister for Expression f(x,y)+z+(x*y)/z, result = 134.0
[mXparser-v.5.2.1] gr = 1, nr = 1, first = true, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = f(x,y)+z+(x*y)/z
[mXparser-v.5.2.1] gr = 2, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 2, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*5
[mXparser-v.5.2.1] gr = 2, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 10
[mXparser-v.5.2.1] gr = 1, nr = 2, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = f(10,y)+z+(x*y)/z
[mXparser-v.5.2.1] gr = 2, nr = 1, first = true, last = false, Type = Argument, descr = y = 2*x, step = 2*x
[mXparser-v.5.2.1] gr = 3, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 3, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*3
[mXparser-v.5.2.1] gr = 3, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 6
[mXparser-v.5.2.1] gr = 2, nr = 2, first = false, last = false, Type = Argument, descr = y = 2*x, step = 2*6
[mXparser-v.5.2.1] gr = 2, nr = 3, first = false, last = true, Type = Argument, descr = y = 2*x, step = 12
[mXparser-v.5.2.1] gr = 1, nr = 3, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = f(10,12)+z+(x*y)/z
[mXparser-v.5.2.1] gr = 2, nr = 1, first = true, last = false, Type = Argument, descr = z = 3*y/x, step = 3*y/x
[mXparser-v.5.2.1] gr = 3, nr = 1, first = true, last = false, Type = Argument, descr = y = 2*x, step = 2*x
[mXparser-v.5.2.1] gr = 4, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 4, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*5
[mXparser-v.5.2.1] gr = 4, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 10
[mXparser-v.5.2.1] gr = 3, nr = 2, first = false, last = false, Type = Argument, descr = y = 2*x, step = 2*10
[mXparser-v.5.2.1] gr = 3, nr = 3, first = false, last = true, Type = Argument, descr = y = 2*x, step = 20
[mXparser-v.5.2.1] gr = 2, nr = 2, first = false, last = false, Type = Argument, descr = z = 3*y/x, step = 3*20/x
[mXparser-v.5.2.1] gr = 3, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 3, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*5
[mXparser-v.5.2.1] gr = 3, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 10
[mXparser-v.5.2.1] gr = 2, nr = 3, first = false, last = false, Type = Argument, descr = z = 3*y/x, step = 3*20/10
[mXparser-v.5.2.1] gr = 2, nr = 4, first = false, last = false, Type = Argument, descr = z = 3*y/x, step = 60/10
[mXparser-v.5.2.1] gr = 2, nr = 5, first = false, last = true, Type = Argument, descr = z = 3*y/x, step = 6
[mXparser-v.5.2.1] gr = 1, nr = 4, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = f(10,12)+6+(x*y)/z
[mXparser-v.5.2.1] gr = 2, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 2, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*2
[mXparser-v.5.2.1] gr = 2, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 4
[mXparser-v.5.2.1] gr = 1, nr = 5, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = f(10,12)+6+(4*y)/z
[mXparser-v.5.2.1] gr = 2, nr = 1, first = true, last = false, Type = Argument, descr = y = 2*x, step = 2*x
[mXparser-v.5.2.1] gr = 3, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 3, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*2
[mXparser-v.5.2.1] gr = 3, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 4
[mXparser-v.5.2.1] gr = 2, nr = 2, first = false, last = false, Type = Argument, descr = y = 2*x, step = 2*4
[mXparser-v.5.2.1] gr = 2, nr = 3, first = false, last = true, Type = Argument, descr = y = 2*x, step = 8
[mXparser-v.5.2.1] gr = 1, nr = 6, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = f(10,12)+6+(4*8)/z
[mXparser-v.5.2.1] gr = 2, nr = 1, first = true, last = false, Type = Argument, descr = z = 3*y/x, step = 3*y/x
[mXparser-v.5.2.1] gr = 3, nr = 1, first = true, last = false, Type = Argument, descr = y = 2*x, step = 2*x
[mXparser-v.5.2.1] gr = 4, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 4, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*2
[mXparser-v.5.2.1] gr = 4, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 4
[mXparser-v.5.2.1] gr = 3, nr = 2, first = false, last = false, Type = Argument, descr = y = 2*x, step = 2*4
[mXparser-v.5.2.1] gr = 3, nr = 3, first = false, last = true, Type = Argument, descr = y = 2*x, step = 8
[mXparser-v.5.2.1] gr = 2, nr = 2, first = false, last = false, Type = Argument, descr = z = 3*y/x, step = 3*8/x
[mXparser-v.5.2.1] gr = 3, nr = 1, first = true, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*rList(2,1,3,5,4)
[mXparser-v.5.2.1] gr = 3, nr = 2, first = false, last = false, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 2*3
[mXparser-v.5.2.1] gr = 3, nr = 3, first = false, last = true, Type = Argument, descr = x = 2rList(2,1,3,5,4), step = 6
[mXparser-v.5.2.1] gr = 2, nr = 3, first = false, last = false, Type = Argument, descr = z = 3*y/x, step = 3*8/6
[mXparser-v.5.2.1] gr = 2, nr = 4, first = false, last = false, Type = Argument, descr = z = 3*y/x, step = 24/6
[mXparser-v.5.2.1] gr = 2, nr = 5, first = false, last = true, Type = Argument, descr = z = 3*y/x, step = 4
[mXparser-v.5.2.1] gr = 1, nr = 7, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = f(10,12)+6+(4*8)/4
[mXparser-v.5.2.1] gr = 2, nr = 1, first = true, last = false, Type = Function, descr = f(a,b) = a*b, step = a*b
[mXparser-v.5.2.1] gr = 2, nr = 2, first = false, last = true, Type = Function, descr = f(a,b) = a*b, step = 120
[mXparser-v.5.2.1] gr = 1, nr = 8, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = 120+6+(4*8)/4
[mXparser-v.5.2.1] gr = 1, nr = 9, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = 120+6+(32)/4
[mXparser-v.5.2.1] gr = 1, nr = 10, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = 120+6+8
[mXparser-v.5.2.1] gr = 1, nr = 11, first = false, last = false, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = 126+8
[mXparser-v.5.2.1] gr = 1, nr = 12, first = false, last = true, Type = Expression, descr = f(x,y)+z+(x*y)/z, step = 134
[mXparser-v.5.2.1] Computing time = 0.089 s.
Nuget – Package Manager

Install-Package MathParser.org-mXparser -Version 5.2.1

Nuget – .NET CLI

dotnet add package MathParser.org-mXparser --version 5.2.1

Nuget – Package Reference

<PackageReference Include="MathParser.org-mXparser" Version="5.2.1"/>

Maven – Dependency

<dependency>
<groupid>org.mariuszgromada.math</groupid>
<artifactid>MathParser.org-mXparser</artifactid>
<version>5.2.1</version>
</dependency>

Maven – Gradle

implementation 'org.mariuszgromada.math:MathParser.org-mXparser:5.2.1'

Maven – Gradle (Kotlin)

implementation("org.mariuszgromada.math:MathParser.org-mXparser:5.2.1")

GitHub

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

OTHER DOWNLOAD OPTIONS

Download latest release – v.5.2.1 Orion: .NET bin onlyDownload latest release – v.5.2.1 Orion: JAVA bin onlyDownload latest release – v.5.2.1 Orion: bin + doc

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