# Category:Definitions/Harmonic Ranges

This category contains definitions related to Harmonic Ranges.
Related results can be found in Category:Harmonic Ranges.

Let $A$ and $B$ be points on a straight line.

Let $P$ and $Q$ lie on $AB$ such that $P$ is on the line segment $AB$ while $Q$ is outside the line segment $AB$.

Let $P$ and $Q$ be positioned such that:

$\dfrac {AP} {PB} = -\dfrac {AQ} {QB}$

Then $\tuple {AB, PQ}$ are said to be a harmonic range.

## Pages in category "Definitions/Harmonic Ranges"

The following 7 pages are in this category, out of 7 total.