Unfortunately, this variant, as well as described no German manual. Amazon, we were referred to Casio, here we were told that the Casio FX-83GTPlus is not intended for the German market and it is therefore also not a German manual available. It is therefore questionable as there is another, more expensive, version with German manual on Amazon.
The enclosed English guide is only a short guide and does not explain all the functions of the FX-83GTPlus.
This is annoying because the calculator is perfect for school.