@dgw "Tri" for trignometry and triangles. The two enemy ships are two points on a triangle; you are the third point. It only takes two observers (with strong senses of position and direction) to triangulate the position of a third. Much as you have two eyes in order for your brain to perform enough basic triangulation to give you a sense of depth-perception.
OTOH, that 180 degrees line kinda threw me, too. It sounded as though two entities were both headed off in different 180-degree-from-the-ship's-heading directions, which made no sense.
@thogek Fair point re: "Tri". I'll leave the original comment as written, but I should have thought of that. Cheers!
@dgw well… triangulation doesn't mean you need 3 points ;-) apparently you need 2 points and from these two, the third will be calculated. - aready one point less you have to tell them XD
Shout by dgwVIP 10BlockedParent2016-07-26T06:44:08Z— updated 2017-02-15T20:22:34Z
"They can both see us. They must have us triangulated by now." Do I need to educate the screenwriters on what the prefix "tri-" means?Retracted, because I was wrong.Same for "[…] each one heading 180 degrees from our course." There is only one point that is 180° from any compass heading, not two.