PowerDiffRule

java.lang.Object
- org.lsmp.djep.djep.diffRules.PowerDiffRule

All Implemented Interfaces:

DiffRulesI
```
public class PowerDiffRule
extends Object
implements DiffRulesI
```
Diffrentiates a power with respect to var. If m is a a number diff(y^m,x) -> m * y^(m-1) otherwise diff(y^z,x) -> z * y^(z-1) * diff(y,x) + y^z * ln(z) * diff(z,x)

Constructor Summary

Constructors
Constructor and Description

PowerDiffRule(String inName)

Constructors
Constructor and Description
`PowerDiffRule(String inName)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Node`	`differentiate(ASTFunNode node, String var, Node[] children, Node[] dchildren, DJep djep)` Returns the top node of of the derivative of this function wrt to variable var.
`String`	`getName()` Returns the name of the function.
`String`	`toString()` Returns a string representation of the rule.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - PowerDiffRule
```
public PowerDiffRule(String inName)
```
- Method Detail
  - toString
```
public String toString()
```
    Description copied from interface: DiffRulesI
    
    Returns a string representation of the rule.
    
    Specified by:
    
    toString in interface DiffRulesI
    
    Overrides:
    
    toString in class Object
  - getName
```
public String getName()
```
    Description copied from interface: DiffRulesI
    
    Returns the name of the function. Used as index in hashtable and as way of linking with standard JEP functions. You probably want to specify the in the constructors.
    
    Specified by:
    
    getName in interface DiffRulesI
  - differentiate
```
public Node differentiate(ASTFunNode node,
                          String var,
                          Node[] children,
                          Node[] dchildren,
                          DJep djep)
                   throws ParseException
```
    Description copied from interface: DiffRulesI
    
    Returns the top node of of the derivative of this function wrt to variable var.
    
    Specified by:
    
    differentiate in interface DiffRulesI
    
    var - The name of variable to differentiate wrt to.
    
    children - the arguments of the function
    
    dchildren - the derivatives of each argument of the function.
    
    Returns:
    
    top node of and expression tree for the derivative.
    
    Throws:
    
    ParseException - if there is some problem in compiling the derivative.

Class PowerDiffRule

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

PowerDiffRule

Method Detail

toString

getName

differentiate