Atn

Returns the arctangent of the specified number.

Syntax

double Atn (
    double value
)

Parameters

value

Any valid numeric expression.

Remarks

The Atn function takes the ratio of two sides of a right triangle (number) and returns the corresponding angle in radians. The ratio is the length of the side opposite the angle divided by the length of the side adjacent to the angle. The range of the result is -pi/2 to pi/2 radians.

See Also

Math Functions
Cos Function
Sin Function
Tan Function