In graph theory terms, drawing each revision as a point and each " derived revision " relationship as an arrow ( conventionally pointing from older to newer, in the same direction as time ), this is a linear graph.
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The list of revisions from the start to HEAD ( in graph theory terms, the unique path in the tree, which forms a linear graph as before ) is the " trunk " or " mainline ."
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An irregular graph was observed by K . L . Mukherjee and his group instead of the standard normal linear graphs which should be normally observed after plotting a graph of weight of the lungs expressed as gm / kg of body weight against the body weight.
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:A linear graph would show the absolute movement of the average while a Logarithmic scale, at every point along the scale, would show only the relative change of the average-a logarithmic scale makes a 1 % change the same " size, " throughout while a linear scale makes a 1 $ change the same " size " throughout . & laquo; Talk & raquo; 20 : 42, 11 May 2007 ( UTC)
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If one connects the elements of " N " in order by arcs into a linear graph, then choosing any subset of arcs and removing the rest, one obtains a graph with " x " connected components, and by sending these to the successive elements of " X ", one obtains a weakly increasing surjective function; also the sizes of the connected components give a composition of " n " into " x " parts.
