Ever look closely at the printout from a computer or the images on the screens in a video arcade? Can you see the pattern of squares? (If you have a computer, try printing out the same word in small ...
If you have trouble sticking to a goal, visual cues can help. For example, personal finance writer Trent Hamm suggests using graph paper to mark your progress. Visual cues or triggers work because ...
Taiwanese Journal of Mathematics, Vol. 10, No. 4 (June 2006), pp. 1015-1023 (9 pages) Let G be an outerplanar graph with maximum degree Δ(G) ≥ 3. We prove that the chromatic number χ(G²) of the square ...
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