Core Function ATan
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(Created page with "<pre> ATan( <expression> ) </pre> === Description === Calculates the arctangent of a number. === Parameters === ==== expression ==== Any valid numeric expression. === Retur...")
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(Created page with "<pre> ATan( <expression> ) </pre> === Description === Calculates the arctangent of a number. === Parameters === ==== expression ==== Any valid numeric expression. === Retur...")
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Revision as of 22:30, 16 November 2011
ATan( <expression> )
Contents |
Description
Calculates the arctangent of a number.
Parameters
expression
Any valid numeric expression.
Return Value
Returns the trigonometric arctangent of expression. Result is in radians..
Remarks
The result of 4 * ATan(1) is PI.
Example
$x = ATan(0.5); $pi = 4 * ATan(1); $radToDeg = 180 / @PI; $y = ATan(1) * $radToDeg; println( "Value is: $y " ); //arctangent of 1 returns 45°
