Introduction - If you have any usage issues, please Google them yourself
even wrote a sequence of Chinese expressions into expressions sequence after the procedure. But only on single characters for operation, now improved a bit to be able to arbitrary accuracy of numerical calculations. and to be able to handle any number of brackets (although I do not have explicit permission or input [] (), as long as they are 10% () can be achieved [] () or the operation of), since there is a decimal point procedures, Therefore, the completion of the sequence of time, in order to in order to distinguish between data entry, I used them to underscore the isolation years.