jmathlib.core.tokens
Class NumberToken

java.lang.Object
  jmathlib.core.interpreter.RootObject
      jmathlib.core.tokens.Token
          jmathlib.core.tokens.OperandToken
              jmathlib.core.tokens.DataToken
                  jmathlib.core.tokens.NumberToken

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, ErrorCodes, TokenConstants

Direct Known Subclasses:

DoubleNumberToken, Int16NumberToken, Int32NumberToken, Int64NumberToken, Int8NumberToken, SingleNumberToken, UInt16NumberToken, UInt32NumberToken, UInt64NumberToken, UInt8NumberToken

public class NumberToken
extends DataToken

Class representing numbers used in expression holds a 2D array of complex numers in a 3d array values[yx][REAL/IMAG] All operations on a NumberToken create a new NumberToken

See Also:

Serialized Form

Field Summary

protected static int	IMAG Index for Imaginary values within array
protected java.text.NumberFormat	numFormat stores the number format for displaying the number
protected static int	REAL Index for real values within array

Fields inherited from class jmathlib.core.tokens.DataToken

dataType, noElem, sizeA, sizeX, sizeY

Fields inherited from class jmathlib.core.tokens.Token

priority

Fields inherited from interface jmathlib.core.constants.TokenConstants

ADDSUB_PRIORITY, AND_PRIORITY, ANDAND_PRIORITY, ASSIGN_PRIORITY, BRACKET_PRIORITY, COMPARE_PRIORITY, CONCAT, MATRIX, MULDIV_PRIORITY, OR_PRIORITY, OROR_PRIORITY, PARAMETER, POWER_PRIORITY, RELATION_PRIORITY, SINGLE, ttDelimiter, ttNotSet, ttOperand, ttOperator

Fields inherited from interface jmathlib.core.constants.ErrorCodes

ERR_BRACKET_OPEN, ERR_BRACKET_ORDER, ERR_FUNCTION_NOT_FOUND, ERR_FUNCTION_NOT_IMPLEMENTED, ERR_INSUFFICIENT_PARAMETERS, ERR_INVALID_PARAMETER, ERR_LVALUE_REQUIRED, ERR_MATRIX_SINGULAR, ERR_NOT_SQUARE_MATRIX, ERR_OPNOTSUPPORTED, ERR_TOO_MANY_PARAMETERS, ERR_USER_ERROR, ERR_VARIABLE_NOTDEFINED, OK, OK_FUNCTION_PROCESS

Constructor Summary

NumberToken()

NumberToken(int priority, java.lang.String type)

Method Summary

OperandToken	evaluate(Token[] operands, GlobalValues globals) Evaluate the token.
OperandToken	getElement(int y, int x)
int	index2n(int[] index) Convert from index to n (e.g. index={2,3,5} -> n)
boolean	isNumeric() Checks if this operand is a numeric value
boolean	isScalar()
void	setElement(int y, int x, OperandToken num)
java.lang.String	toString()
java.lang.String	toString(GlobalValues globals)
protected int	yx2n(int y, int x) Convert y,x points to element number n

Methods inherited from class jmathlib.core.tokens.DataToken

checkEqualDimensions, getDataType, getDimensions, getElement, getElementSized, getNumberOfElements, getSize, getSizeX, getSizeY, setElement, setSize

Methods inherited from class jmathlib.core.tokens.OperandToken

add, asArray, Children, ctranspose, derivative, divide, expand, factorial, integral, isLeaf, isNull, leftDivide, mpower, mPower, multiply, negate, power, scalarDivide, scalarLeftDivide, scalarMultiply, simplify, subst, subtract, transpose

Methods inherited from class jmathlib.core.tokens.Token

isDisplayResult, setDisplayResult, toMathMlString

Methods inherited from class jmathlib.core.interpreter.RootObject

clone, toString

Methods inherited from class java.lang.Object

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

Field Detail

numFormat

protected java.text.NumberFormat numFormat

stores the number format for displaying the number

REAL

protected static final int REAL

Index for real values within array

See Also:

Constant Field Values

IMAG

protected static final int IMAG

Index for Imaginary values within array

See Also:

Constant Field Values

Constructor Detail

NumberToken

public NumberToken()

NumberToken

public NumberToken(int priority,
                   java.lang.String type)

Method Detail

yx2n

protected int yx2n(int y,
                   int x)

Convert y,x points to element number n

Parameters:

y -

x -

Returns:

n

index2n

public int index2n(int[] index)

Convert from index to n (e.g. index={2,3,5} -> n)

Parameters:

-

Returns:

getElement

public OperandToken getElement(int y,
                               int x)

Overrides:

getElement in class DataToken

Parameters:

y -

x -

Returns:

setElement

public void setElement(int y,
                       int x,
                       OperandToken num)

Overrides:

setElement in class DataToken

Parameters:

y -

x -

num -

evaluate

public OperandToken evaluate(Token[] operands,
                             GlobalValues globals)

Evaluate the token. This causes it to return itself

Specified by:

evaluate in class Token

Parameters:

operands - = an array of RootObject containing the tokens operands

Returns:

the result of the token evaluation as a RootObject

isNumeric

public boolean isNumeric()

Checks if this operand is a numeric value

Overrides:

isNumeric in class OperandToken

Returns:

true if this is a number, false if it's an algebraic expression

isScalar

public boolean isScalar()

Returns:

true if this number token is a scalar (1*1 matrix)

toString

public java.lang.String toString()

Specified by:

toString in class Token

Returns:

a string representation of the token

toString

public java.lang.String toString(GlobalValues globals)

Overrides:

toString in class Token

Returns: