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!

it's better if user defined functions can be synchronized between different machines based on a signed Google account.

zd

Blah Blah Blah, I already said it in the thingy.

It would be nice to have either the formula or the result. If a single tap on the result transferred it to the formula line and a double tap were to bring up the other options!