| 单词 | perfect square |
| 释义 | > as lemmasperfect square perfect square n. Mathematics an integer (or polynomial) which is the square of another integer (or polynomial); a square number. ΚΠ 1811 P. Barlow Elem. Investig. Theory of Numbers vi. 472 Prob. VIII... To find three integral square numbers, such that the sum of each two, with double the other square, may form three perfect squares. 1850 G. R. Perkins Higher Arithm. ix. 182 The sum of the four numbers, 386, 2114, 3970, 10430, is a perfect square. 1951 W. W. Elliott & E. R. C. Miles College Math. (ed. 2) iv. 48 In order to form a perfect square trinomial in the left member, take one half the coefficient of x, square it, and add the result in both members. 1996 Sci. Amer. June 92/3 Some Padovan numbers, such as 9, 16 and 49, are perfect squares—are there others? < as lemmas |
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