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) getting out of the Cube. After the band leaves, Mr. Thomas briefly enters telling the Man that the "Rest Period" is over. A prisoner named Watson (Jack Van Evera) enters the Cube having escaped from his Cube. He notices that the Man hasn't been here for long while mentioning how his Cube had squares while the Man's Cube has rectangles. Watson tells the Man that he had to tell how many times has passed by making marks in his thumbnail which didn't work when he lost his thumbnails. Watson decides to return to his Cube to see if he left