unction takes a single number, which is expected to be the desired rotation in radians. A radian is a mathematical unit of angular measure based on the radius of a circle. If you follow the outline of a circle for the length of its radius, that angle is 1 radian. By the magic of numbers, a full circle is therefore 2π (or about 6.283) radians. For those not interested in the intricacies of PI, the <code>radians()</code> function can be used to convert degrees to radians. All of the following lines of code w