Expr

Documentation of 'jv.thirdParty.expr.Expr' Java class Expr ("JavaView Reference Manual")

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java.lang.Object
- jv.thirdParty.expr.Expr

All Implemented Interfaces:

java.io.Serializable
```
public abstract class Expr
extends java.lang.Object
implements java.io.Serializable
```
A mathematical expression, built out of literal numbers, variables, arithmetic operators, and elementary functions. The operator names are from java.lang.Math.

See Also:

Serialized Form

Author:

Darius Bacon

Version:

30.08.08, 2.00 revised (kp) Handling of complex functions added.
07.07.99, 1.20 revised (kp) New functions added: cot, acot, acosh, asinh, atanh, acoth, sign.
31.01.99, 1.10 revised (kp) New functions added: cosh, sinh, tanh, coth.
00.00.96, 1.00 created (Darius Bacon) Original version

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ABS` Absolute value.
`static int`	`ACOS` Arcus cosine.
`static int`	`ACOSH` Area cosinus hyperbolicus.
`static int`	`ACOT` Arcus cotangens.
`static int`	`ACOTH` Area cotangens hyperbolicus.
`static int`	`ADD` Binary operator.
`static int`	`ARG` Argument of complex number from principal branch, 0 for real numbers.
`static int`	`ASIN` Arcus sine.
`static int`	`ASINH` Area sinus hyperbolicus.
`static int`	`ATAN` Arcus tangens.
`static int`	`ATANH` Area tangens hyperbolicus.
`static int`	`CEIL` Unary operator.
`static int`	`CMPLX` Complex real component, same for real numbers (kp)
`static int`	`CONJ` Complex conjugate, identity for real numbers.
`static int`	`COS` Cosine.
`static int`	`COSH` Cosinus hyperbolicus.
`static int`	`COT` Cotangens.
`static int`	`COTH` Cotangens hyperbolicus.
`static int`	`DIV` Binary operator.
`static int`	`EXP` Exponential function.
`static int`	`FLOOR` Unary operator.
`static int`	`IM` Complex real component, same for real numbers (kp)
`static int`	`INV` Complex inversion 1/z, same for real numbers (kp)
`static int`	`LOG` Natural logarithm, principal branch of complex log.
`static int`	`MUL` Binary operator.
`static int`	`NEG` Negative.
`static int`	`POW` Binary operator.
`static int`	`RE` Complex real component, same for real numbers (kp)
`static int`	`ROUND` Unary operator.
`static int`	`SIGN` Sign of argument.
`static int`	`SIN` Sine.
`static int`	`SINH` Sinus hyperbolicus.
`static int`	`SQRT` Square root
`static int`	`SUB` Binary operator.
`static int`	`TAN` Tangens.
`static int`	`TANH` Tangens hyperbolicus.
`static int`	`TYPE_COMPLEX`
`static int`	`TYPE_DEPENDS`
`static int`	`TYPE_REAL` Type of an expression.

Constructor Summary

Constructors
Constructor and Description

Expr()

Constructors
Constructor and Description
`Expr()`

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`abstract boolean`	`contains(Variable var)` Check if current expression uses the given variable.
`abstract PuComplex`	`getComplexValue()` Return the complex value given the current variable values.
`abstract double`	`getValue()` Return the value given the current variable values.
`boolean`	`isComplex()` Return whether double or complex.
`static Expr`	`make_app1(int rator, Expr rand)` Create a unary expression.
`static Expr`	`make_app2(int rator, Expr rand0, Expr rand1)` Create a binary expression.
`void`	`setComplex(boolean bVal)` Return whether double or complex.

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

- Field Detail
  - ADD
```
public static final int ADD
```
    Binary operator.
    
    See Also:
    
    Constant Field Values
  - SUB
```
public static final int SUB
```
    Binary operator.
    
    See Also:
    
    Constant Field Values
  - MUL
```
public static final int MUL
```
    Binary operator.
    
    See Also:
    
    Constant Field Values
  - DIV
```
public static final int DIV
```
    Binary operator.
    
    See Also:
    
    Constant Field Values
  - POW
```
public static final int POW
```
    Binary operator.
    
    See Also:
    
    Constant Field Values
  - ABS
```
public static final int ABS
```
    Absolute value.
    
    See Also:
    
    Constant Field Values
  - ACOS
```
public static final int ACOS
```
    Arcus cosine.
    
    See Also:
    
    Constant Field Values
  - ASIN
```
public static final int ASIN
```
    Arcus sine.
    
    See Also:
    
    Constant Field Values
  - ATAN
```
public static final int ATAN
```
    Arcus tangens.
    
    See Also:
    
    Constant Field Values
  - ACOT
```
public static final int ACOT
```
    Arcus cotangens. (kp)
    
    See Also:
    
    Constant Field Values
  - CEIL
```
public static final int CEIL
```
    Unary operator.
    
    See Also:
    
    Constant Field Values
  - COS
```
public static final int COS
```
    Cosine.
    
    See Also:
    
    Constant Field Values
  - EXP
```
public static final int EXP
```
    Exponential function.
    
    See Also:
    
    Constant Field Values
  - FLOOR
```
public static final int FLOOR
```
    Unary operator.
    
    See Also:
    
    Constant Field Values
  - LOG
```
public static final int LOG
```
    Natural logarithm, principal branch of complex log.
    
    See Also:
    
    Constant Field Values
  - NEG
```
public static final int NEG
```
    Negative.
    
    See Also:
    
    Constant Field Values
  - ROUND
```
public static final int ROUND
```
    Unary operator.
    
    See Also:
    
    Constant Field Values
  - SIN
```
public static final int SIN
```
    Sine.
    
    See Also:
    
    Constant Field Values
  - SQRT
```
public static final int SQRT
```
    Square root
    
    See Also:
    
    Constant Field Values
  - TAN
```
public static final int TAN
```
    Tangens.
    
    See Also:
    
    Constant Field Values
  - COT
```
public static final int COT
```
    Cotangens. (kp)
    
    See Also:
    
    Constant Field Values
  - SINH
```
public static final int SINH
```
    Sinus hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - COSH
```
public static final int COSH
```
    Cosinus hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - TANH
```
public static final int TANH
```
    Tangens hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - COTH
```
public static final int COTH
```
    Cotangens hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - ASINH
```
public static final int ASINH
```
    Area sinus hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - ACOSH
```
public static final int ACOSH
```
    Area cosinus hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - ATANH
```
public static final int ATANH
```
    Area tangens hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - ACOTH
```
public static final int ACOTH
```
    Area cotangens hyperbolicus. (kp)
    
    See Also:
    
    Constant Field Values
  - SIGN
```
public static final int SIGN
```
    Sign of argument. (kp)
    
    See Also:
    
    Constant Field Values
  - ARG
```
public static final int ARG
```
    Argument of complex number from principal branch, 0 for real numbers. (kp)
    
    See Also:
    
    Constant Field Values
  - CONJ
```
public static final int CONJ
```
    Complex conjugate, identity for real numbers. (kp)
    
    See Also:
    
    Constant Field Values
  - INV
```
public static final int INV
```
    Complex inversion 1/z, same for real numbers (kp)
    
    See Also:
    
    Constant Field Values
  - RE
```
public static final int RE
```
    Complex real component, same for real numbers (kp)
    
    See Also:
    
    Constant Field Values
  - IM
```
public static final int IM
```
    Complex real component, same for real numbers (kp)
    
    See Also:
    
    Constant Field Values
  - CMPLX
```
public static final int CMPLX
```
    Complex real component, same for real numbers (kp)
    
    See Also:
    
    Constant Field Values
  - TYPE_REAL
```
public static final int TYPE_REAL
```
    Type of an expression.
    
    See Also:
    
    Constant Field Values
  - TYPE_COMPLEX
```
public static final int TYPE_COMPLEX
```
    See Also:
    
    Constant Field Values
  - TYPE_DEPENDS
```
public static final int TYPE_DEPENDS
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Expr
```
public Expr()
```
- Method Detail
  - isComplex
```
public boolean isComplex()
```
    Return whether double or complex.
  - setComplex
```
public void setComplex(boolean bVal)
```
    Return whether double or complex.
  - getComplexValue
```
public abstract PuComplex getComplexValue()
```
    Return the complex value given the current variable values.
  - getValue
```
public abstract double getValue()
```
    Return the value given the current variable values.
  - contains
```
public abstract boolean contains(Variable var)
```
    Check if current expression uses the given variable.
  - make_app1
```
public static Expr make_app1(int rator,
                             Expr rand)
```
    Create a unary expression.
    
    Parameters:
    
    rator - unary operator
    
    rand - operand
  - make_app2
```
public static Expr make_app2(int rator,
                             Expr rand0,
                             Expr rand1)
```
    Create a binary expression.
    
    Parameters:
    
    rator - binary operator
    
    rand0 - left operand
    
    rand1 - right operand

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Class Expr

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ADD

SUB

MUL

DIV

POW

ABS

ACOS

ASIN

ATAN

ACOT

CEIL

COS

EXP

FLOOR

LOG

NEG

ROUND

SIN

SQRT

TAN

COT

SINH

COSH

TANH

COTH

ASINH

ACOSH

ATANH

ACOTH

SIGN

ARG

CONJ

INV

RE

IM

CMPLX

TYPE_REAL

TYPE_COMPLEX

TYPE_DEPENDS

Constructor Detail

Expr

Method Detail

isComplex

setComplex

getComplexValue

getValue

contains

make_app1

make_app2