Package com.singularsys.extensions.lambda

Class LambdaFunction

java.lang.Object

com.singularsys.jep.functions.PostfixMathCommand

com.singularsys.jep.misc.MacroFunction

com.singularsys.extensions.lambda.LambdaFunction

All Implemented Interfaces:

JepComponent, PostfixMathCommandI, java.io.Serializable

public class LambdaFunction
extends MacroFunction

PostfixMathCommand for lambda functions defined by string expressions. Very similar to MacroFunction but changes the way its printed.

Since:

Extensions 2.1

See Also:

Serialized Form

Field Summary

Fields inherited from class com.singularsys.jep.misc.MacroFunction

ev, expression, nParam, preCompiled, topNode, varNames, vars

Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand

curNumberOfParameters, name, NaN, numberOfParameters

Constructor Summary

Constructors

Constructor	Description
LambdaFunction(Jep jep, java.lang.String funName, java.lang.String[] parameters, java.lang.String expression)	Create a function with two or more arguments defined by an expression.
LambdaFunction(Jep jep, java.lang.String funName, java.lang.String parameter, java.lang.String expression)	Create a function with a single arguments defined by an expression.
LambdaFunction(java.lang.String funName, java.lang.String[] parameters, java.lang.String expression)	Create a function with two or more arguments defined by an expression.
LambdaFunction(java.lang.String funName, java.lang.String[] parameters, java.lang.String expression, Node root)	Create a function with a node tree.

Method Summary

Modifier and Type	Method	Description
java.lang.String	toString()	Prints the function in the form [x,y]=>x^2+y^2

Methods inherited from class com.singularsys.jep.misc.MacroFunction

getLightWeightInstance, getParameterNames, getTopNode, getVars, init, run

Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LambdaFunction

public LambdaFunction(Jep jep,
                      java.lang.String funName,
                      java.lang.String parameter,
                      java.lang.String expression)

Create a function with a single arguments defined by an expression.

Parameters:

jep - The jep instance

funName - name of the function

parameter - the name of the formal parameter.

expression -

LambdaFunction

public LambdaFunction(Jep jep,
                      java.lang.String funName,
                      java.lang.String[] parameters,
                      java.lang.String expression)

Create a function with two or more arguments defined by an expression.

Parameters:

jep - The jep instance

funName - name of the function

parameters - an array of the formal parameter names used by the function

expression -

LambdaFunction

public LambdaFunction(java.lang.String funName,
                      java.lang.String[] parameters,
                      java.lang.String expression)

Create a function with two or more arguments defined by an expression. Use this method for recursive functions like factorial. The MacroFunction.init(Jep) method must be called after the function is added to the function table, which will recompile the function.

Parameters:

funName - name of the function

parameters - an array of the formal parameter names used by the function

expression -

LambdaFunction

public LambdaFunction(java.lang.String funName,
                      java.lang.String[] parameters,
                      java.lang.String expression,
                      Node root)

Create a function with a node tree. The ImportationVisitor is used to convert the tree into context for this object.

Parameters:

funName - function name

parameters - list of parameters

expression - string representation of equation

root - root of expressions tree.

Method Detail

toString

public java.lang.String toString()

Prints the function in the form [x,y]=>x^2+y^2

Overrides:

toString in class MacroFunction