Definition:Perspective
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Definition
Let $A$ and $B$ be plane geometric figures.
Perspective from Point
Let $A$ and $B$ be such that their points are in one-to-one correspondence such that the lines joining pairs of corresponding points pass through a single point $P$.
Then $A$ and $B$ are in perspective from a point, and that point is $P$.
Perspective from Line
Let $A$ and $B$ be such that their points are in one-to-one correspondence such that the lines joining pairs of corresponding points lie on the same straight line $L$.
Then $A$ and $B$ are in perspective from a line, and that line is $L$.
Also see
- Results about perspective can be found here.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): perspective
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): perspective