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.
According to Star Trek: Starship Spotter, however the actual maximum speed of the Prometheus-class was warp 9.99, which corresponds more closely with the idea of the Prometheus being the fastest ship in the fleet, since the Intrepid-class had been previously established as a ship capable of warp 9.975.