ATAN Function

ATAN(a)

Returns the arctangent of a.

Parameters

a(REAL)

The input value.

Return Value

Returns a REAL in radians.

Remarks

Notice that the return value is in radians. To convert a value from radians to degrees, multiply the radians value by 180/π. The RMC has an M_PI constant for π.

Examples

ATAN(0.5) returns 0.4636476

ATAN(0.5) * 180 / M_PI returns 26.56505