Cube root can be done with a compass-and-straightedge construction. Newton's method is an iterative method that can be used to calculate the cube root. For real floating-point numbers this method reduces to the following iterative algorithm to produce successively better approximations of the cube root of "a": The method is simply averaging three factors chosen such that at each iteration. Halley's method improves upon this with an algorithm that converges more quickly with each step, albeit consuming more multiplication operations: With either method a poor initial approximation of "x" can give very poor algorithm performance, and coming up with a good initial
Cube Cove, Alaska Cube Cove, Alaska Cube Cove was an unincorporated community and census-designated place on the northwestern side of Admiralty Island in the Hoonah-Angoon Census Area of the U.S. state of Alaska. The population was 72 at the 2000 United States Census, but it was not included in the 2010 census. What was Cube Cove was located at . According to the United States Census Bureau, the CDP had a total area of , of which is land and , or 2.48%, is water. Cube Cove first appeared on the 1990 U.S. Census as a census-designated place (CDP) and again in 2000.