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Three figures in angle brackets naming equivalent directions.
Also known as: uvw angle brackets, Equivalent direction family
The notation naming the whole family of directions equivalent by symmetry to a given one, written in angle brackets.
Names the whole family of directions equivalent by symmetry to the one given.
Contexts: Laboratory
Closes the bracket family, in which round means a plane, square a direction, curly a family of planes and angle a family of directions.
Contexts: Laboratory
Three figures written side by side inside angle brackets, completing the four bracket shapes of the index notation.