How to use

SubtractOperator

in

org.matheclipse.parser.client.operator

static public InfixOperator createInfixOperator(final String operatorStr, final String headStr, final int precedence,
    final int grouping) {
  InfixOperator oper;
  if (headStr.equals("Divide")) {
    oper = new DivideOperator(operatorStr, headStr, precedence, grouping);
  } else if (headStr.equals("Subtract")) {
    oper = new SubtractOperator(operatorStr, headStr, precedence, grouping);
  } else {
    oper = new InfixOperator(operatorStr, headStr, precedence, grouping);
  }
  return oper;
}

/**
 * Creates a new ASTNode object.
 * 
 * @param operatorStr the operator str
 * @param headStr the head str
 * @param precedence the precedence
 * @param grouping the grouping
 * @return the infix operator
 */
static public InfixOperator createInfixOperator( final String operatorStr, final String headStr, final int precedence, final int grouping ) {
  InfixOperator oper;
  if ( headStr.equals( "Divide" ) ) {
    oper = new DivideOperator( operatorStr, headStr, precedence, grouping );
  }
  else if ( headStr.equals( "Subtract" ) ) {
    oper = new SubtractOperator( operatorStr, headStr, precedence, grouping );
  }
  else {
    oper = new InfixOperator( operatorStr, headStr, precedence, grouping );
  }
  return oper;
}