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  2. Sum coloring - Wikipedia

    en.wikipedia.org/wiki/Sum_coloring

    The sum of the labels is 11, smaller than could be achieved using only two labels. In graph theory, a sum coloring of a graph is a labeling of its vertices by positive integers, with no two adjacent vertices having equal labels, that minimizes the sum of the labels. The minimum sum that can be achieved is called the chromatic sum of the graph. [1]

  3. Graph coloring - Wikipedia

    en.wikipedia.org/wiki/Graph_coloring

    Sum of the distance between the vertices and the difference of their colors is greater than k + 1, where k is a positive integer. Rank coloring If two vertices have the same color i, then every path between them contain a vertex with color greater than i Subcoloring An improper vertex coloring where every color class induces a union of cliques

  4. Flood fill - Wikipedia

    en.wikipedia.org/wiki/Flood_fill

    Flood fill, also called seed fill, is a flooding algorithm that determines and alters the area connected to a given node in a multi-dimensional array with some matching attribute. It is used in the "bucket" fill tool of paint programs to fill connected, similarly colored areas with a different color, and in games such as Go and Minesweeper for ...

  5. Chromatic polynomial - Wikipedia

    en.wikipedia.org/wiki/Chromatic_polynomial

    This would have established the four color theorem. No graph can be 0-colored, so 0 is always a chromatic root. Only edgeless graphs can be 1-colored, so 1 is a chromatic root of every graph with at least one edge. On the other hand, except for these two points, no graph can have a chromatic root at a real number smaller than or equal to 32/27. [8]

  6. List of mathematical series - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_series

    7.2 Sum of reciprocal of factorials. ... allowing the result to be computed in constant time even when the series contains a large number of terms. ...

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. The Double Drenching Paint Trend Will Fill Your Rooms With ...

    www.aol.com/double-drenching-paint-trend-fill...

    Double drenching, in short, pairs different hues of equal intensity. For example, instead of two tones of the same blue, you might see deep blue paired with deep purple, or a vibrant green with a ...

  9. Edge coloring - Wikipedia

    en.wikipedia.org/wiki/Edge_coloring

    Each color class in H corresponds to a set of edges in G that form a subgraph with maximum degree two; that is, a disjoint union of paths and cycles, so for each color class in H it is possible to form three color classes in G. The time for the algorithm is bounded by the time to edge color a bipartite graph, O(m log Δ) using the algorithm of ...