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English: Gray, blue, red, green, light green, black graph papers with 1 cm–0.5 cm–1 mm grids (page size: A4) in printable PDF format. Date 25 July 2013, 18:04:17
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A circle trapezoid is the region in a circle that lies between two non-crossing chords and a circle trapezoid graph is the intersection graph of families of circle trapezoids on a common circle. There is an O ( n 2 ) {\displaystyle O(n^{2})} algorithm for maximum weighted independent set problem and an O ( n 2 log n ) {\displaystyle {O}(n ...
Alternatively, a graph is diamond-free if and only if every pair of maximal cliques in the graph shares at most one vertex. The family of graphs in which each connected component is a cactus graph is downwardly closed under graph minor operations. This graph family may be characterized by a single forbidden minor. This minor is the diamond ...
English: Gray, blue, red, green, black graph papers with 1 inch–0.5 inch–1/12 inch grids (page size: US Letter) in printable PDF format. Date 25 July 2013, 18:02:35
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The second has a brown half-trapezoid and a pink half-triangle. Another set, Deci-Blocks, is made up of six shapes, equivalent to four, five, seven, eight, nine and ten triangles respectively. Christopher Danielson developed a new set of blocks, called Twenty-First Century Pattern Blocks . [ 8 ]
Hexagonal paper shows regular hexagons instead of squares. These can be used to map geometric tiled or tesselated designs among other uses. Isometric graph paper or 3D graph paper is a triangular graph paper which uses a series of three guidelines forming a 60° grid of small triangles. The triangles are arranged in groups of six to make hexagons.