How can we use cordic to tanh(x+1)/tanh(x)?

Question

How can we use cordic to

tanh(x+1)/tanh(x)

I can't get a idea about how to apply cordic to above function.

In other word, which point on the above function, can we apply cordic?

Answer 1

Cordic is an extremely fast and efficient algorithm for implementing trigonometric functions. The most common implementations you can find refer to sin/cos functions but it can be used for their hyperbolic counterparts.

Once you have an implementation for sinh/cosh is easy to get tanh.

Have a look here