## Tan

### Function Type:

The tan function works on REAL arguments only.

### Function Purpose:

The tan function will take an argument whose value corresponds to an angle in radian form
and return the value of tangent for that angle.

### Required Arguments:

tan (**x**)

Where **x** must be a REAL argument whose value will be interpreted as an angle in radians.

### Optional Arguements:

There are no optional arguments to this functions.

### Results:

The tan function is used in the following manner:

x = 45.0
pi = 3.1415926

x = x/180*pi ( Remember the angle must be in radians )

y = tan (x)

Naturally, the value that is returned will equal one.

### For more examples and information see:

lecture seven

## Up** one level / Home**

**
**

Written by Jason Wehr : jcw142@psu.edu and Maintained by John Mahaffy :
jhm@cac.psu.edu