#fast sse tanh written in c

here is fast hyperbolic tangent approximation based on continued fractions.
written in ansi c. works with gcc and msvc.

provides some flexibility in regard of speed / accuracy.

link

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#"optimal-l" filters

after having discussions with some very kind people on the topic of "legendre / optimal-l" filters, we have ended up expanding its knowledge base a bit more. i have written a short article providing maxima files for calculating n-th order of the filter, also there are links to the original papers and list of the people involved.

https://sites.google.com/site/neolit123/home/legendre_filters

lubomir