Torture tests: what do they mean?

[Dieter]

(05-14-2014 06:20 PM)jebem Wrote:  Well, my Casio FX-991DE Plus refuses to give me an answer for that question other than this:
Tan(pi/2) = "Math.-Fehler"
This is a German edition machine, you know. So that sentence means that I did something that can not exist in this calculator small brain

This simply means "math error". So it's not a specific detailled error message. Obviously the Casio handles "pi/2" as a special case and does not translate the input to tan(1,57079632679...).

Quote: - what is the meaning of infinite by the way?

I am sure you know the meaning of "infinite". ;-) If it's the German term you're asking for: that's "unendlich".

Dieter