Torture tests: what do they mean?

[jebem]

(05-14-2014 05:35 AM)DavidM Wrote:  It appears that the original author of the "torture test" chose 355/226 due to its rough approximation of \(\pi\)/2. I wonder how much more interesting Pauli's table would be with \(\pi\)/2 as the target of the TAN function?

50g:

Code:


12-digit tan(1.57079632680) = -195948537906
15-digit tan(1.57079632679489) = 1.51074943811517E14

I'd be especially curious as to what the Casio results are for that.

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 - what is the meaning of infinite by the way?