Classic Fourier Series

[salvomic]

(02-01-2015 05:12 PM)Snorre Wrote:  Hi,

another approach:
...

hi Snorre,
I'm almost ready to put a very better program, melting yours and mine, very short and powerful...

But I would have use "choose" for input to choose between two intervals for calculus (from 0 to 2PI or from -pi to pi), as the results seem to be different (they aren't but are correlated to those intervals)...
However I get "Error: invalid input": is it not possible to use "CHOOSE" with a #cas program? :-(

please, tell me...