[sdiy] sineshaper and piece wise linear function update

[Martin Czech]

I've updated my site:

Now contains Tietze/Schenk sine shaper
as well as Tietze/Schenk universal piece wise linear function network.

http://www.geocities.com/SoHo/Museum/4459/
http://www.geocities.com/SoHo/Museum/4459/diy/diy_toc.html

tryed to compress scanns as good as possible.

m.c.