Definition:Polar Axis/Also known as
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Polar Axis: Also known as
Some sources refer to the polar axis as the initial line.
Some use the term initial vector.
Sources
- 1933: D.M.Y. Sommerville: Analytical Conics (3rd ed.) ... (previous) ... (next): Chapter $\text I$. Coordinates: $2$. Coordinates
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): initial line