public String toFormulaString(String[] operands) {StringBuilder buffer = new StringBuilder();buffer.append( operands[0] );buffer.append("<>");buffer.append( operands[1] );return buffer.toString();}
public override String ToFormulaString(String[] operands){StringBuilder buffer = new StringBuilder();buffer.Append(operands[0]);buffer.Append("<>");buffer.Append(operands[1]);return buffer.ToString();}