Cube root approximation is somewhat of a black art. Some implementations manipulate the exponent bits of the floating-point number; i.e. they arrive at an initial approximation by dividing the exponent by 3. Cubic equations, which are polynomial equations of the third degree (meaning the highest power of the unknown is 3) can always be solved for their three solutions in terms of cube roots and square roots (although simpler expressions only in terms of square roots exist for all three solutions, if at least one of them is a rational number). If two of the solutions are complex numbers, then all three
The Cube (film) anything behind. When the Man states that if he re-enters his Cube where he won't get out again, Watson ranted about having to depend on the squares. Watson decides to go back to his Cube. When Mr. Thomas enters asking if someone else was in his Cube, the Man states that there was a visitor. Mr. Thomas states that other visitor was acting and introduces him to Jack Van Evera who asks Mr. Thomas if they can take out the part about the thumbnails. As they leave, Jack asks Mr. Thomas what the rest of these Cubes are for anyway.