Unit Imaginary Number. The unit Imaginary Number (the equivalent of 1 for Real Numbers) is â(â1) (the square root of minus one). In mathematics we use i (for imaginary) but in electronics they use j (because i already means current, and the next letter after i is j). Examples of Imaginary Numbers i
8 Things You Must Do When Your Flight Is Cancelled Or Delayed. 1  Fly in the morning. 2  Avoid regional jets flying out of hub airports. 3  Before booking, check a routeâs on-time performance.  Donât check bags.
JetBlue Canceled Twice As Many Flights Today As Anyone Else. Several airlines canceled flights today due to snow and ice in the northeast, with JetBlue canceling twice as many as the next guy. âThe weather is fine for flying,â US Airways company spokesman Andrew Christie said.