FunctionExtension (MathParser.org-mXparser - Math Expressions Parser / Formula Evaluator library for JAVA Android C# .NET/MONO CLS compliant 4.4.3 API)

```
public interface FunctionExtension
```
FunctionExtension provides interface for function algorithm definition. In this case algorithm definition is based on source code using JAVA (for JAVA / Android) or .NET. If implemented Function Extension object can be further used while Function object construction, which means it can extend mXparser math collection. mXparser extension with your own implementation can be achieved by implementing FunctionExtension interface, creating an FunctionExtension object, creating Function object based on FunctionExtension, adding Function object to Expression / mXparser definition.

Version:

4.1.0

Author:

Mariusz Gromada
mariuszgromada.org@gmail.com
MathSpace.pl
MathParser.org - mXparser project page
mXparser on GitHub
mXparser on SourceForge
mXparser on Bitbucket
mXparser on CodePlex
Janet Sudoku - project web page
Janet Sudoku on GitHub
Janet Sudoku on CodePlex
Janet Sudoku on SourceForge
Janet Sudoku on BitBucket
Scalar Free
Scalar Pro
ScalarMath.org

See Also:

Function

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`calculate()`	Actual algorithm implementation.
`FunctionExtension`	`clone()`	Cloning in case of usage in Expression with recursive statements.
`String`	`getParameterName(int parameterIndex)`	Gets parameter name
`int`	`getParametersNumber()`	Gets parameters number.
`void`	`setParameterValue(int parameterIndex, double parameterValue)`	Sets value of function parameter

- Method Detail
  - getParametersNumber
```
int getParametersNumber()
```
    Gets parameters number.
    
    Returns:
    
    Returns parameters number.
  - setParameterValue
```
void setParameterValue(int parameterIndex,
                       double parameterValue)
```
    Sets value of function parameter
    
    Parameters:
    
    parameterIndex - - parameter index (from 0 to n-1)
    
    parameterValue - - parameter value
  - getParameterName
```
String getParameterName(int parameterIndex)
```
    Gets parameter name
    
    Parameters:
    
    parameterIndex - - parameter index (from 0 to n-1)
    
    Returns:
    
    Returns parameter name
  - calculate
```
double calculate()
```
    Actual algorithm implementation.
    
    Returns:
    
    Function Extension value.
  - clone
```
FunctionExtension clone()
```
    Cloning in case of usage in Expression with recursive statements.
    
    Returns:
    
    Returns FunctionExtension object that was cloned.
    
    See Also:
    
    Expression.getRecursiveMode()