> I put it there because I can't upload to this group. It says

> the moderator has disabled uploads.

!!!!!!!!!!!!!!!

How long has it been like that?????

It wasn't me, honest!

I'll go take a look...

- j

> I think I'd need to look up the proof that the fourier series

> integration gives you a sequence of sine waves that sums up

> to give the original waveform, and then see how one can do

> the same for square waves, can well imagine one might.

Eeek! I don't think so!

> Could also try to prove it just by showing that one can

> make a sine wave out of square waves

Er, yes, if you could show that you'd be all set.

- Jeff