✔ Appearance ✔ Standard ✔ Console
radianAngle# = atn( expr )
Returns the arctangent of
expr in radians. In other words, if
expr represents the tangent of some angle, then
) returns the angle. The returned angle will be in the range of -π/2 to +π/2 radians (which corresponds to -90 to +90 degrees).
atn always returns a double-precision result.
(1) equals π/4, you can use
atn to get a value for π.
dim pi# end globals pi = atn( 1 ) * 4 print pi
No special notes.