GTR - alle wichtigen Befehle und Anleitungen
iOS Universal Education
Learn everything about your calculator!
How do I calculate a maximum turning point?
Or a inflection?
What can I do if forgot a command?
How can I stop a wrong plot-process to save time?
All these problems are solved with this great App!
Become a Pro in Math!
It's as easy as 1 2 3 :D
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