Fibonacci Hyperbolic Tangent

$$\mathop{\rm tFh}(x)\equiv{\mathop{\rm sFh}(x)\over\mathop{\rm cFh}(x)},$$

where $\mathop{\rm sFh}(x)$ is the Fibonacci Hyperbolic Sine and $\mathop{\rm cFh}(x)$ is the Fibonacci Hyperbolic Cosine.

References

Trzaska, Z. W. ``On Fibonacci Hyperbolic Trigonometry and Modified Numerical Triangles.'' Fib. Quart. 34, 129-138, 1996.