acos
acot
acosh calculates the hyperbolic arccosine.
r = acosh(m)
Return Value
r is the hyperbolic arccosine of m.
Parameters
m
m is a real or complex matrix.
Comment
Algorithm: log(x + sqrt(x .* x - 1)).
log(x + sqrt(x .* x - 1))
See also
Overview Mathematic, cosh
id-1578379