![Found this incredible function on my Fx991EX if you press shift and Option button on left corner it creates a QR code that can be scanned with a phone to see graphing Found this incredible function on my Fx991EX if you press shift and Option button on left corner it creates a QR code that can be scanned with a phone to see graphing](https://preview.redd.it/b4afcauvzvw51.jpg?auto=webp&s=9b4abf91b2abf20d9b1f9207ae41abe199c48a58)
Found this incredible function on my Fx991EX if you press shift and Option button on left corner it creates a QR code that can be scanned with a phone to see graphing
![How to set up Casio fx-991EX Classwiz Calculator Settings [SAT, A Level, Engineering, B Sc 2022] - YouTube How to set up Casio fx-991EX Classwiz Calculator Settings [SAT, A Level, Engineering, B Sc 2022] - YouTube](https://i.ytimg.com/vi/9AKronG-76k/maxresdefault.jpg)
How to set up Casio fx-991EX Classwiz Calculator Settings [SAT, A Level, Engineering, B Sc 2022] - YouTube
![Casio FX-991ES PLUS - Calculadora científica (417 funciones, 15 + 10 + 2 dígitos, pantalla Natural), color gris : Amazon.es: Oficina y papelería Casio FX-991ES PLUS - Calculadora científica (417 funciones, 15 + 10 + 2 dígitos, pantalla Natural), color gris : Amazon.es: Oficina y papelería](https://m.media-amazon.com/images/I/514p1fUXn8L._AC_UF894,1000_QL80_.jpg)