The E operation does nothing, has no effect. Identity is indicated as E. All molecules have this element. All molecules/objects possess the identity operation, i.e., posses E.
E has the same importance as the number 1 does in multiplication.
3xscreens, 3x projectors /
Matrox Tripplehead2Go MiniDisplayPort Edition
Prefered projectors and screen aspect ratio 16:9 (widescreen)
video output: HDMI/VGA/DVI
Elecrtical outlets needed: minimum 3 electrical outlets
1 x audio jack.