# Rewriting hyperbolic functions as exponentials: hyp2exp

### 5.24.1 Rewriting hyperbolic functions as exponentials: hyp2exp

The hyperbolic functions are typically defined in terms of exponential functions; the hyp2exp command converts hyperbolic functions into their exponential forms.

- hyp2exp takes one argument:
  expr, an expression.
- hyp2exp(expr) rewrites each hyperbolic function in expr with exponentials (as a rational function of one exponential, i.e. without linearization).

#### Example.

Input:

hyp2exp(sinh(x))

Output:

ex−

1
ex

2