Individual features, such as houses, are shown as point symbols like a small dot or square.
2.
The original dragons were apparently able to communicate with it, even calling it " Mother ", and at one point symbols on its surface appear to glow; each symbol then gradually disappears as if counting down.
3.
These included proportional point symbols, the line of equal value ( isoline ), the choropleth and shading, the dot method, class intervals, and flow lines . As the main cartographic tools for depicting thematic data had already been developed, much of Dent s career was spent researching and examining ways in which the cartographer could better communicate with the map reader.
4.
For general point processes, sometimes a subscript on the point symbol, for example \ textstyle x, is included so one writes ( with set notation ) \ textstyle x _ i \ in { N } instead of \ textstyle x \ in { N }, and \ textstyle x can be used for the dummy variable in integral expressions such as Campbell's theorem, instead of denoting random points.
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