![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](https://external-preview.redd.it/QzGxKJTsJYdhrM3qx-mimmS9ZCA-kdPsS7UKs9-PiXg.jpg?auto=webp&s=f24f26f114defad6fe0be8a3664b6d6178b0f6f3)
Why does the German version of the Casio fx-991EX, the fx-991DE X, have more functions than the US version? : r/calculators
![Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific](https://m.media-amazon.com/images/I/71vMZkfTlTL._AC_SY550_.jpg)
Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific
![Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific](https://m.media-amazon.com/images/I/71dIttxEYaL._AC_SL1500_.jpg)
Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific
![Casio FX-991DEX Taschenrechner 696 Funktionen Icon-Menü 4X4 Matrizen Ungleichung | Kaijott - Monster günstig Casio FX-991DEX Taschenrechner 696 Funktionen Icon-Menü 4X4 Matrizen Ungleichung | Kaijott - Monster günstig](https://cdn03.plentymarkets.com/dddn7qk2z8er/item/images/19543/full/19543_1.jpg)
Casio FX-991DEX Taschenrechner 696 Funktionen Icon-Menü 4X4 Matrizen Ungleichung | Kaijott - Monster günstig
![Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific Amazon.com: Casio FX-991DE X Scientific Calculator with Natural Display (only German Language) : Industrial & Scientific](https://m.media-amazon.com/images/I/71RA+ibzEsL._AC_SL1500_.jpg)