👉 A hyperbolic function, more specifically a hyperbolic cosine or hyperbolic sine, is an extension of the trigonometric functions that can be defined for angles in the interval $(-\pi/2, \pi/2)$, where the value of $\sinh(x)$ increases from 0 to +โ at x = ฯ/2 and decreases from -โ to 0 at x = -ฯ/2. It is also known as the "hyperbolic cosine
