Symbols:K/Unit Vector
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Unit Vector
- $\mathbf k$
A unit vector, usually in the direction of the $z$-axis.
Hence it is usually aligned so as to be parallel to the vertical direction in a given frame of reference.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): k: 2 a. (conventionally printed in bold type)
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): k (k)
- 2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.) ... (previous) ... (next): k (k)