Calculator ft+

Calculator ft+ is two machines on one screen. THE CONSTRUCTION CALCULATOR An RPN calculator with a real dimensional engine. Enter 5.5 m + 6.5 ft and get 7.4812 m — the first unit you enter wins, and every value converts live to km, m, cm, mm, ft, in, yd, mile and nautical mile while a tape-measure readout shows feet, inches and 64ths. Multiply two lengths and you get a true area; take the square root of an area and you are back to a length. Mass times gravity reads in newtons. Type "5 ft 3 1/4 in" — or say it out loud — and it lands as a real length. Press-hold any value to edit it on a construction keyboard with every unit, constant and tape fraction. THE RPL COMPUTER Flip the FT|RPL switch and the same screen becomes an RPL machine in the spirit of the great HP handhelds, powered by the open-source newRPL engine: an unlimited typed object stack (reals at 32-digit precision, lists,…