trigcat.spad line 87 [edit on github]
Category for the hyperbolic trigonometric functions.
cosh(x) returns the hyperbolic cosine of x.
coth(x) returns the hyperbolic cotangent of x.
csch(x) returns the hyperbolic cosecant of x.
sech(x) returns the hyperbolic secant of x.
sinh(x) returns the hyperbolic sine of x.
tanh(x) returns the hyperbolic tangent of x.