Cos(90) returning a value very close to 0, but I need 0?

Question

The values for temp_x_btm_left = 0 & temp_y_btm_left=1;

angle = 90;

//Moving the bottom left coordinates
_btm_left.real() = (temp_x_btm_left * cos(angle         


        

Answer 1

One solution would be to set up an Epsilon equal to some magical small value and then check whether the absolute value of your result provided by a function is less (or less-or-equal) to your Epsilon.

(Naming it Epsilon is just a convention; it could be double MagicalNumberIndeed = VerySmallValue;)