**Hyperbolic Functions**

The hyperbolic sine (sinh), hyperbolic cosine (cosh) and hyperbolic tangent
(tanh) functions and their inverses are found in a variety of menus and in the
__catalog__.

Press **MENU 1** to access the RUN-MAT menu.
Press **OPTN** to view the menu options, press **F6** to see more, then
press **F2** to select HYP to view the hyperbolic functions menu. Press the
appropriate number 1-6 to select the hyperbolic function of choice.

For example, let's calculate cosh(7). Press **2** to select 2:cosh, then
enter **( 7 ) EXE**.

To
graph a hyperbolic function, press **MENU 3**
to access the equation editor. Press **OPTN** to view the options menu, press
**F4** to select HYP and access the hyperbolic functions menu, then press the
appropriate number 1-6 to select the hyperbolic function of choice. For example,
we graph the hyperbolic sine function, sinh. Press **1** to select 1:sinh,
then enter ** ( X ) EXE**. Press **ESC** to return to the graph menu, press
**F6** to see more options, then press **F5** to select DRAW and view the
graph.

Press **CTRL 0** to toggle on and off the graph
menu at the bottom of the screen.