Mildly interesting, if you search for:
x * tanh(y)
you get the graph for:
x * (exp(y)-exp(‑y))/(exp(y)+exp(‑y)).
[Edit: asterisks on HN are hard]
x * tanh(y)
you get the graph for:
x * (exp(y)-exp(‑y))/(exp(y)+exp(‑y)).
[Edit: asterisks on HN are hard]
http://stackoverflow.com/questions/6118028/fast-hyperbolic-t...