This calculator can be used not only in scientific notation(e.g. 1E-6) but also using engineering multipliers(e.g. p,n,u,m,k,M).By pressing the [ENG] button, the display of calculation result will change. (e.g. 1E-9 or 1n)Calculation results in the past is displayed in the history area.When you tap the formula area , you will be able to edit it. You will be able to re-calculate.Unit that can be entered from the button is p = 1E-12, n = 1E-9, u = 1E-6, m = 1E-3, k = 1E3, M = 1E6. (f = 1E-15 and G = 1E9 is used for display only.iPhone4 can display four lines in history area. iPhone5 can display 9 lines. The main limitations of Free version is as follows.you can not scroll history area.History is not saved when you exit.
||Compatible with: iphone3gs, iphone3gs, iphone4, iphone4, ipodtouchfourthgen, ipodtouchfourthgen, ipad2wifi, ipad2wifi, ipad23g, ipad23g, iphone4s, iphone4s, ipadthirdgen, ipadthirdgen, ipadthirdgen4g, ipadthirdgen4g, iphone5, iphone5, ipodtouchfifthgen, ipodtouchfifthgen, ipadfourthgen, ipadfourthgen, ipadfourthgen4g, ipadfourthgen4g, ipadmini, ipadmini, ipadmini4g, ipadmini4g