Free iOS App Today: Math and Physics Scientific Calculator
https://itunes.apple.com/us/app/id888306929?mt=8&src=af
Description
“At last the calculator that we need ⍟⍟⍟⍟⍟
Physics grads/students this is the calculator you must have. I have at least 4 other calculators on my phone all of which are good for certain things. This one is excellent at all things I need. One minor gripe, for ease of use could do with a clear button on screen but all else it's top marks . Good form!“
Scientific calculator with 140+ functions, 600+ units and 60+ math any physical variables.
Can solve equations, derive and integrate functions, work with matrices, vectors, has currency converter
No internet connection needed! (except for currency rate refresh)