trigcat.spad line 36 [edit on github]
Category for the inverse hyperbolic trigonometric functions.
acosh(x) returns the hyperbolic arc-cosine of x.
acoth(x) returns the hyperbolic arc-cotangent of x.
acsch(x) returns the hyperbolic arc-cosecant of x.
asech(x) returns the hyperbolic arc-secant of x.
asinh(x) returns the hyperbolic arc-sine of x.
atanh(x) returns the hyperbolic arc-tangent of x.