## Sec(x)

##### Last updated October 9, 2001

**Version:** 1 |
**Requires:** CF5 |
**Library:** MathLib

**Description:**

Returns the Secant of an angle. The secant of a 90 degree angle is infinity. All angles are expressed in radians.

**Return Values:**

Returns a numeric value or string.

**Example:**

```
<CFSET x=0.785398163397>
<CFSET y=90*(Pi()/180)>
<CFOUTPUT>
Given x=#x#<BR>
Given y=#y#<BR>
The Secant of #x# radians is: #Sec(x)#<BR>
The Secant of #y# radians is: #Sec(y)#<BR>
</CFOUTPUT>
```

**Parameters:**

Name | Description | Required |
---|---|---|

x | Any angle measured in radians. | Yes |

**Full UDF Source: **

```
/**
* Returns the secant of an angle.
*
* @param x Any angle measured in radians.
* @return Returns a numeric value or string.
* @author Rob Brooks-Bilson (rbils@amkor.com)
* @version 1, October 9, 2001
*/
function Sec(x)
{
if (x EQ 90*(Pi()/180)){
return "infinity";
}
else {
return 1/cos(x);
}
}
```

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