| 释义 |
pentomino|pɛnˈtɒmɪnəʊ|
[f. penta- + domino by deliberately false analogy: see quot. 1961.]
Any of the twelve distinct planar shapes that can be formed by joining five identical squares by their edges.
In the U.S. the pl. Pentominoes is registered as the proprietary name of a board game involving these shapes.
1954S. W. Golomb in Amer. Math. Monthly LXI. 681 There are twelve distinct pentominoes. 1961New Scientist 2 Nov. 316/2 A domino is formed from two adjacent squares: he [sc. Golomb] argues that practical needs and false etymology will justify our calling a square a monomino—whence we have a series monomino, domino, tromino, tetromino,{ddd}, and Maestro pieces then become pentominoes. 1964Listener 11 June 975/3 The jigsaw pattern is made from a set of twelve pentominoes. 1965S. W. Golomb Polyominoes 13, I learned of the true antiquity of pentominoes, one kind of polyomino. Although the name was coined in my lecture of 1953, the first pentomino problem was published in 1907. 1975Official Gaz. (U.S. Patent Office) 21 Jan. tm279/2 Solomon W. Golomb, La Canada, Calif. Filed Sept. 13, 1972. Pentominoes. For equipment, consisting of the twelve distinct five-celled square figures and a playing board, for use in various combinatorial puzzles and in competitive board games... First used November 1953. 1975A. C. Clarke Imperial Earth xxiv. 173 He replaced the titanite cross in its setting between the F, N, U and V pentominoes. |