PHP function atan()
Availability in PHP 4.0
Arc tangent
Parameters
| Parameter | Data type | Default value | Note |
|---|---|---|---|
$arg |
float |
not | Argument to process |
Return values
float
The arc tangent of arg in radians.
Availability in PHP 4.0
Arc tangent
| Parameter | Data type | Default value | Note |
|---|---|---|---|
$arg |
float |
not | Argument to process |
float
The arc tangent of arg in radians.
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