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  2. Greedy coloring - Wikipedia

    en.wikipedia.org/wiki/Greedy_coloring

    In the study of graph coloring problems in mathematics and computer science, a greedy coloring or sequential coloring [1] is a coloring of the vertices of a graph formed by a greedy algorithm that considers the vertices of the graph in sequence and assigns each vertex its first available color. Greedy colorings can be found in linear time, but ...

  3. Boolean Pythagorean triples problem - Wikipedia

    en.wikipedia.org/wiki/Boolean_Pythagorean...

    There are 2 7825 ≈ 3.63×10 2355 possible coloring combinations for the numbers up to 7825. These possible colorings were logically and algorithmically narrowed down to around a trillion (still highly complex) cases, and those, expressed as Boolean satisfiability problems, were examined using a SAT solver .

  4. Coloring book - Wikipedia

    en.wikipedia.org/wiki/Coloring_book

    This is an accepted version of this page This is the latest accepted revision, reviewed on 23 February 2025. Book containing line art, to which the user is intended to add color For other uses, see Coloring Book (disambiguation). Filled-in child's coloring book, Garfield Goose (1953) A coloring book is a type of book containing line art to which people are intended to add color using crayons ...

  5. Sierpiński triangle - Wikipedia

    en.wikipedia.org/wiki/Sierpiński_triangle

    Iteration can be generated by taking a Pascal's triangle with rows and coloring numbers by their value modulo . As n {\displaystyle n} approaches infinity, a fractal is generated. The same fractal can be achieved by dividing a triangle into a tessellation of P 2 {\displaystyle P^{2}} similar triangles and removing the triangles that are upside ...

  6. Graph theory - Wikipedia

    en.wikipedia.org/wiki/Graph_theory

    Many problems and theorems in graph theory have to do with various ways of coloring graphs. Typically, one is interested in coloring a graph so that no two adjacent vertices have the same color, or with other similar restrictions. One may also consider coloring edges (possibly so that no two coincident edges are the same color), or other ...

  7. IDLE - Wikipedia

    en.wikipedia.org/wiki/IDLE

    [4] [5] It is packaged as an optional part of the Python packaging with many Linux distributions. It is completely written in Python and the Tkinter GUI toolkit (wrapper functions for Tcl/Tk). IDLE is intended to be a simple IDE and suitable for beginners, especially in an educational environment. To that end, it is cross-platform, and avoids ...

  8. Four color theorem - Wikipedia

    en.wikipedia.org/wiki/Four_color_theorem

    In graph-theoretic terms, the theorem states that for a loopless planar graph, its chromatic number is ().. The intuitive statement of the four color theorem – "given any separation of a plane into contiguous regions, the regions can be colored using at most four colors so that no two adjacent regions have the same color" – needs to be interpreted appropriately to be correct.

  9. Children's python - Wikipedia

    en.wikipedia.org/wiki/Children's_python

    Children's python (Antaresia childreni) is a species of nonvenomous snake in the family Pythonidae. The species is named after John George Children . It is a nocturnal species occurring in the northern half of Australia and generally found on the ground, although it often climbs trees.