[Roko_foko]

Hi,
[solved]
What function is used for arc tan( inverse/reverse function of tangent (sin/cos) )
[unsolved] what's the symbol for the costant 3.14(I believe it is named in English as PI).
Thank you in advance!

EDIT: found answer for first question it's atan.

[Neil.]

Quote:

Originally Posted by Roko_foko Hi, what's the symbol for the costant 3.14(I believe it is named in English as PI). Thank you in advance!

Symbol of Pi: