Slope(0.3) to positive angle code in pi

SLOPE(CLOSE, 30) > 0.3
Evaluates to true when the slope is greater than 0.3.

Here How is 0.3 be defined in terms of angle do it comes to an angle of 16deg.
what will be the value in decimal for slope more that 27deg.
I need to code in pi if adx(14)slope is more than 27°