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JEP is a Java library for parsing and evaluating mathematical expressions. Use groupId org.fudaa to deploy it in maven central
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/* @author rich
* Created on 27-Jul-2003
*/
package org.lsmp.djep.matrixJep;
import org.lsmp.djep.matrixJep.function.*;
import org.lsmp.djep.vectorJep.function.*;
import org.nfunk.jep.*;
import org.lsmp.djep.xjep.*;
/**
* The set of operators used in matricies.
*
* @author Rich Morris
* Created on 27-Jul-2003
*/
public class MatrixOperatorSet extends XOperatorSet {
protected Operator TENSOR = new XOperator("TENSOR",new MList(),XOperator.NARY);
public Operator getMList() { return TENSOR; }
public MatrixOperatorSet() {
super();
OP_ADD.setPFMC(new MAdd());
OP_SUBTRACT.setPFMC(new MSubtract());
// TODO fix commutatitivity for matrix mult. How?
OP_MULTIPLY.setPFMC(new MMultiply());
OP_DIVIDE.setPFMC(new MDivide());
OP_POWER.setPFMC(new MPower());
OP_UMINUS.setPFMC(new MUMinus());
OP_DOT.setPFMC(new MDot());
OP_CROSS= new XOperator("^^","^",new ExteriorProduct(),XOperator.BINARY+XOperator.RIGHT,((XOperator) OP_CROSS).getPrecedence());
OP_ASSIGN.setPFMC(new MAssign());
OP_LIST.setPFMC(new MList());
OP_ELEMENT.setPFMC(new MArrayAccess());
// OP_RANGE.setPFMC(new VRange());
}
public Operator[] getOperators()
{
Operator ops1[] = super.getOperators();
Operator ops2[] = new Operator[ops1.length+1];
System.arraycopy(ops1,0,ops2,0,ops1.length);
ops2[ops1.length]= TENSOR;
return ops2;
}
}