jmathlib.toolbox.jmathlib.matrix
Class elementat

java.lang.Object
  jmathlib.core.interpreter.RootObject
      jmathlib.core.functions.Function
          jmathlib.core.functions.ExternalFunction
              jmathlib.toolbox.jmathlib.matrix.elementat

All Implemented Interfaces:

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

public class elementat
extends ExternalFunction

An external function to return the element at a certain point of a matrix

See Also:

Serialized Form

Field Summary

Fields inherited from class jmathlib.core.functions.ExternalFunction

IMAG, REAL

Fields inherited from class jmathlib.core.functions.Function

lastModified, name, pathAndFileName

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

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

Constructor Summary

elementat()

Method Summary

OperandToken

evaluate(Token[] operands, GlobalValues globals) get the element at a certain point of a matrix

Methods inherited from class jmathlib.core.functions.ExternalFunction

getParamCount

Methods inherited from class jmathlib.core.functions.Function

debugLine, equals, getLastModified, getName, getNArgIn, getNArgOut, getNoOfLeftHandArguments, getPathAndFileName, setLastModified, setName, setNoOfLeftHandArguments, setPathAndFileName, throwMathLibException

Methods inherited from class jmathlib.core.interpreter.RootObject

clone, toString

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

elementat

public elementat()

Method Detail

evaluate

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

get the element at a certain point of a matrix

Specified by:

evaluate in class Function

Parameters:

operands[0] - = the matrix to sum

operands[1] - = the row no

operands[2] - = toe column no

Returns:

the result as an OperandToken