====== tan ======


===== Description =====

Calculate the [[wp>Trigonometric_functions#Tangent|tangent]] of an angle.

===== Function prototype =====

<code>
double tan <double:Angle>
</code>

===== Arguments =====

^ Name ^ Type ^ Comment ^
| Angle | double | An angle, in radians, the tangent of which is to be calculated. |

===== Return value =====

The tangent of the angle, as a double.

===== Example =====

<code>
double angle
set angle <zs:DegToRad 45> // convert 45 degrees to radians

echo <zs:tan angle> // tan of 45 degrees should be 1
</code>

... the output of which is written to the event log by [[plugins:general:zeoscript:reference:functions:echo]] as:

<file>
1
</file>

===== Comments =====

None.

===== See also =====

  * [[plugins:general:zeoscript:reference:functions:sin]]
  * [[plugins:general:zeoscript:reference:functions:cos]]
  * [[plugins:general:zeoscript:reference:functions:asin]]
  * [[plugins:general:zeoscript:reference:functions:acos]]
  * [[plugins:general:zeoscript:reference:functions:atan]]
  * [[plugins:general:zeoscript:reference:functions:DegToRad]]
  * [[plugins:general:zeoscript:reference:functions:RadToDeg]]