[SOLVED] numpy + scipy missing parabola functions ?(ipython question)

PoleStar · 08-12-2015, 09:25 PM

Code:

Hyperbolic functions¶
sinh(x[, out]) 	Hyperbolic sine, element-wise.
cosh(x[, out]) 	Hyperbolic cosine, element-wise.
tanh(x[, out]) 	Compute hyperbolic tangent element-wise.
arcsinh(x[, out]) 	Inverse hyperbolic sine element-wise.
arccosh(x[, out]) 	Inverse hyperbolic cosine, element-wise.
arctanh(x[, out]) 	Inverse hyperbolic tangent element-wise.

I need to use sech function. But it seems like missing in scipy/numpy.

Thanks

weibullguy · 08-12-2015, 10:55 PM

The hyperbolic secant is defined as:

sech(z) = 1 / cosh(z)