allow it to fill in a terminal parenthesis, e.g., if i type "cos(30" and hit enter, it should evaluate the cosine; or, it should just say "syntax problem" without erasing all my typing and making me start from scratch.

Conversion of DMS / DD for stuff like Lat/Long or survey data

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

This will allow users to write custom script and publish them to shared library, where other users will be able to use them

a calculator with all the trig ratios to avoid tedios algebra and calculatores. all you would need to do is type the length of certain sides, areas, angles and the calculator will do the rest.

The possibility to save favorite currency, either with the person signing in or using currency history.

Mathematical Function

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)

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

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

option to pick decimal mark between comma and dot

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

Should be able to solve for variables. For example, 3x=9 to x=3. You should tell it what variable to solve for, so with V=3x/5-m, solve for x, you would get x=5/3V+m