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The Portuguese Podengo is bred in three size varieties, the Large, Medium and Small (in Portuguese the Grande, Medio and Pequeno). [1] [2] According to the Clube Português de Canicultura's breed standard states the Large stands 55 to 70 centimetres (22 to 28 in) at the withers and healthy adults weigh 20 to 30 kilograms (44 to 66 lb), the Medium stands 40 to 54 centimetres (16 to 21 in) at ...
Bellman's lost-in-a-forest problem is an unsolved minimization problem in geometry, originating in 1955 by the American applied mathematician Richard E. Bellman. [1] The problem is often stated as follows: "A hiker is lost in a forest whose shape and dimensions are precisely known to him.
The printed card of the puzzle shows two donkeys, the central part of which has been left blank on purpose. The third part of the card are the riders, and the objective of the puzzle is to arrange the three pieces (the two donkeys and the riders) so the riders are mounted on the donkeys' backs.
Powell's dog leg method, also called Powell's hybrid method, is an iterative optimisation algorithm for the solution of non-linear least squares problems, introduced in 1970 by Michael J. D. Powell. [1] Similarly to the Levenberg–Marquardt algorithm, it combines the Gauss–Newton algorithm with gradient descent, but it uses an explicit trust ...
Harold Raynsford Stark authored the memo.. The Plan Dog memorandum was a 1940 American government document written by Chief of Naval Operations Harold Stark.It has been called "one of the best known documents of World War II."
A Guide for the Perplexed is a short book by E. F. Schumacher, published in 1977.The title is a reference to Maimonides's The Guide for the Perplexed.Schumacher himself considered A Guide for the Perplexed to be his most important achievement, although he was better known for his 1973 environmental economics bestseller Small Is Beautiful, which made him a leading figure within the ecology ...
The napkin folding problem is a problem in geometry and the mathematics of paper folding that explores whether folding a square or a rectangular napkin can increase its perimeter. The problem is known under several names, including the Margulis napkin problem , suggesting it is due to Grigory Margulis , and the Arnold's rouble problem referring ...
Differences in the rules are said to cause problems in perhaps one in every 10,000 games in competition. [2] This article first presents a simple set of rules which are, except for wording, identical to those usually referred to as the Tromp–Taylor Rules, [3] themselves close in most essential respects to the Chinese rules. These rules are ...