tanhbeginner// Hyperbolic tangent (output in (-1, 1))
Math.tanh(0) // β 0
Math.tanh(1) // β 0.7615...Use Math.tanh() to compute the hyperbolic tangent, commonly used as an activation function in neural networks.
Returns the hyperbolic tangent of a number.
Challenge: Verify that Math.tanh(0) returns 0.