Casio FX-85GT PLUS Black Solar Scientific Calculator
Casio - fx-85GT Plus - - Scientific calculator - Casio fx85GT Plus - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
What's the largest number you can make by only pressing three buttons on a CASIO fx-85GT? : r/maths