numpy.arcsinh(x, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj]) = <ufunc 'arcsinh'>
Inverse hyperbolic sine element-wise.
arcsinh is a multivalued function: for each
x there are infinitely many numbers
z such that
sinh(z) = x. The convention is to return the
z whose imaginary part lies in
For real-valued input data types,
arcsinh always returns real output. For each value that cannot be expressed as a real number or infinity, it returns
nan and sets the
invalid floating point error flag.
For complex-valued input,
arccos is a complex analytical function that has branch cuts
[1j, infj] and
[-1j, -infj] and is continuous from the right on the former and from the left on the latter.
The inverse hyperbolic sine is also known as
|||M. Abramowitz and I.A. Stegun, “Handbook of Mathematical Functions”, 10th printing, 1964, pp. 86. http://www.math.sfu.ca/~cbm/aands/|
|||Wikipedia, “Inverse hyperbolic function”, https://en.wikipedia.org/wiki/Arcsinh|
>>> np.arcsinh(np.array([np.e, 10.0])) array([ 1.72538256, 2.99822295])
© 2005–2019 NumPy Developers
Licensed under the 3-clause BSD License.