Functions are prewritten formulas. Functions differ from regular formulas in that you supply the value but not the operators, such as +, -, *, or /. For example, you can use the SUM function to add. When using a function, remember the following:
The US Navy no longer has nuclear powered cruisers or destroyers. The only nuclear powered surface ships are aircraft carriers. In general, the nuclear powered cruisers/destroyers could achieve speeds in excess of 30 knots (34 Miles Per Hour). Aircraft carriers must be able to achieve the same speed in order for them to be able to launch and recover aircraft. The US Navy no longer has nuclear powered cruisers or destroyers.
Re: Fastest Ship in the US Navy. I agree that many of the nuclear-powered ships are probably capable of higher speeds than publicised, the fastest of the carriers, according to my references, is the USS Enterprise, which is given as 35+knots, while the newer Nimitz ships are only listed as being capable of 30+ kts.