Position-Ratio of Point/Examples/R Approaching P
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Example of Position-Ratio of Point
Let $P$ and $Q$ be points in space.
Let $R$ be a point on the straight line passing through $P$ and $Q$.
Let $k$ denote the position-ratio of $R$.
As $R$ approaches $P$, $k \to 0$.
Sources
- 1933: D.M.Y. Sommerville: Analytical Conics (3rd ed.) ... (previous) ... (next): Chapter $\text I$. Coordinates: $11$. Position-ratio of a point