Prof. Abel Méndez 🔭 🔬 on Twitter: "My high school student calculator, a CASIO FX-4000P, and my university professor calculator, a TI-Nspire CX II CAS. 35 years apart. 🙂 https://t.co/9bq6sk6zLZ" / Twitter
![Casio - fx-4000p - - Scientific calculator - Casio fx4000p - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA Casio - fx-4000p - - Scientific calculator - Casio fx4000p - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA](https://casio.ledudu.com/images/pockets/casio/boites/zoom/fx4000p.jpg)
Casio - fx-4000p - - Scientific calculator - Casio fx4000p - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
![تويتر \ Guy Leech على تويتر: "It lives! This @Casio fx-4000P programmable calculator was bought for me by my late Dad's company as payment for writing some software (in compiled BASIC) for تويتر \ Guy Leech على تويتر: "It lives! This @Casio fx-4000P programmable calculator was bought for me by my late Dad's company as payment for writing some software (in compiled BASIC) for](https://pbs.twimg.com/media/ErCztRRXYAAnIdC.jpg)