{"identifier":52019,"topic":"Functions","name":"atan","text":"<code><pre>the atan of <i>number<\/i>\n<\/pre><\/code>\nValue returned:  number equal to the trigonometric arc tangent of<code> <i>number<\/i> <\/code>expressed in radians <br><br>\n\n Note: There are 2 * pi radians in 360 degrees. <br>\n","related":{"32809":null,"54961":"cos","78162":"numberFormat","64752":"sin","65714":"tan"},"examples":"","demo":"","debug":{"9":["the atan of number\r\r"]}}