fails:Math#tanh returns the hyperbolic tangent of the argument
fails:Math#tanh returns the hyperbolic tangent for Complex numbers
fails:Math.tanh returns the hyperbolic tangent of the argument
fails:Math.tanh returns the hyperbolic tangent for Complex numbers
fails:"Math#tanh returns the hyperbolic tangent of the argument"
fails:"Math#tanh returns the hyperbolic tangent for Complex numbers"
fails:"Math.tanh returns the hyperbolic tangent of the argument"
fails:"Math.tanh returns the hyperbolic tangent for Complex numbers"
