public sumExpressionNode(termNode term) { this.term = term; }
public termNode(termNode term, MulOpNode MulOp, powExpressionNode powExpression) { this.term = term; this.MulOp = MulOp; this.powExpression = powExpression; }
public sumExpressionNode(sumExpressionNode sumExpression, sumNode sum, termNode term) { this.sumExpression = sumExpression; this.sum = sum; this.term = term; }