Atan Function

Returns the arctangent of the value specified. The arctangent is the angle whose tangent is value.

Syntax
result = Atan( value )

Parameters
value | Double | The value you want the arc tangent of.

Return Value
Result | Double | The arc tangent of value.

# Notes

The Atan function returns the angle (in radians) of the number passed to it. To express the arctangent in degrees, multiply the result by 180/PI.

# Examples

This example uses the Atan function to return the arc tangent of a number.

Dim d as Double
Const PI=3.14159265358979323846264338327950
d=Atan(1) //returns 0.785398 (PI/4 radians)
d=Atan(1)*180/PI // returns 45

# See Also

Atan2, Tan functions.