Heh. I hear you. But but on the other hand, a sawtooth is perfectly everyday with an infinite series of coeffs: http://en.wikipedia.org/wiki/Triangle_wave http:

Heh. I hear you. But but on the other hand, a sawtooth is perfectly everyday with an infinite series of coeffs: http://en.wikipedia.org/wiki/Triangle_wave http://en.wikipedia.org/wiki/Triangle_wave .