Abstract: Point symbols are the most commonly used proportional symbols in thematic mapping. Traditionally two types of symbols have been in use in this category - proportional squares and circles. These studies have reported malfunctioning of these symbol forms in terms of the errors reflected in response outputs of the magnitudes both in absolute and relative modes when these are read from the symbols placed in map environments. This malfunctioning of the symbol among other factors was ascribed to the type and design of symbol form and the legend provided on these maps.
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