Should be able to export data, should be able to change any line later

Mathematical Function

Make the interface to Re-size so it can fit smaller area on the screen

1. Convert date of birth to number of days or hours/minutes/seconds
2. convert remaining retirement years/days
3. Convert Company Joining Date to till date(convert to number of years/days)

you should add a feature that, when you + something and press = the answer comes and you press = again the next factor comes.ex 2+2=4 =6 =8 =10 (factors)

Possibility to choose to work with polish inverse data entry (an extraordinary method of HP calculators). No other one offer that

wolframalpha provides graphs, integral forms, expanded forms, equation solving, factual lookup etc.

Needs to do the above things, or else a standard scientific calculator would be much better.

It is very hard to find a calculator that will add subtract multiply and divide time. Am still looking for one.

Is good to have digit grouping in the calculator field.
E.g One million = 1,000,000

the option for calculating time, hh:mm:ss and frames (for people working with video)

Just like in a casio business calculator, there is a button to check the series of sequential computations (bidirectional).

Please make the calculator as self-running app on Chromebook, just like Scratchpad or Google Talk. This would it make much easier to use it while Multitasking with Google Docs. Keep up the good work!