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
Root Creek, Wisconsin Root Creek, Wisconsin Root Creek was a hamlet in Sections 21-22 and 27-28 of the Town of Greenfield in Milwaukee County, Wisconsin, on the Milwaukee-Janesville plank road, at what is now roughly the intersection of that thoroughfare (now Forest Home Avenue) and 68th Street. The body of water after which it was named is nowadays referred to as the Root River. The post office there was established August 19, 1847, near the eastern bank of Root Creek. When Peter Lavies became postmaster in 1854, soon after the establishment of the Hales Corners post office just on the other side of