![Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators](http://i.imgur.com/BH9vadx.png)
Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators
![Casio fx-991ES Plus 2 Wissenschaftlicher Taschenrechner mit 417 Funktionen und Display, Natur : Amazon.de: Bürobedarf & Schreibwaren Casio fx-991ES Plus 2 Wissenschaftlicher Taschenrechner mit 417 Funktionen und Display, Natur : Amazon.de: Bürobedarf & Schreibwaren](https://m.media-amazon.com/images/I/71e6EfW23DL._AC_SS450_.jpg)
Casio fx-991ES Plus 2 Wissenschaftlicher Taschenrechner mit 417 Funktionen und Display, Natur : Amazon.de: Bürobedarf & Schreibwaren
![Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators](http://i.imgur.com/TfdeQ3S.jpg)
Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators
![Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural : Amazon.de: Stationery & Office Supplies Casio fx-991ES Plus 2 Scientific Calculator with 417 Functions and Display, Natural : Amazon.de: Stationery & Office Supplies](https://m.media-amazon.com/images/I/71e6EfW23DL._AC_SX355_.jpg)