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.
The destroyer J saw the bow wave of one at a distance of 1,500 yards and headed for it at a rapid speed. The Story of the Great War, Volume VI (of VIII) Various Black smoke billows from our funnels, the bow wave rises higher, and now and again a cloud of spray swishes over our decks.