English

Use of the right-hand rule for vectors illustrated.

Noun

right-hand rule ‎(uncountable)

1. A common mnemonic for understanding notation conventions for vectors in three dimensions.
   • 1920, Chester Laurens Dawes, A Course in Electrical Engineering, page 218

     A very convenient method for determining this relation is the Fleming right-hand rule. In this rule the fingers of the right hand are utilized as follows […]

2. (logic) The systematic use of right-hand turnings to solve a maze.
   • 1989, William Poundstone, Labyrinths of Reason: Paradox, Puzzles, and the Frailty of Knowledge

     Worse yet, the right-hand rule does not work for all mazes.

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