| 单词 | recurring decimal |
| 释义 | > as lemmasrecurring decimal recurring decimal n. Mathematics a decimal fraction in which a figure or group of figures repeats indefinitely, e.g. 0.090909… = 1/ 11; also figurative. Cf. repeater n. 3.The convention of marking a recurring group of digits by means of a dot over the first and last digits (e.g. .0.9 for 0.090909…) was used (and perhaps introduced) in J. Marsh Decimal Arithm. made Perfect (1742) i. 5. ΘΚΠ the world > relative properties > number > ratio or proportion > fraction > [noun] > decimal > recurring repetend1714 repeater1721 interminate decimal1728 recurring decimal1748 circulate1769 circulating decimal1838 recurrer1875 1748 J. Robertson Gen Treat. Mensuration (ed. 2) 33 Every circulating or recurring decimal, is a geometrical series infinitely decreasing to 0. 1796 W. Frend Princ. Algebra 76 To find a common fraction or whole number, to which a recurring decimal with several series of recurring numbers is nearly equal. 1853 W. F. Greenfield Pract. & Theory Arithm. App. 157 The rule for conversion of a pure recurring decimal into a vulgar fraction is evident. 1920 C. Roberts in E. J. Macintire tr. C. Gad Johan Bojer App. 258 Hope, like a recurring decimal, pours through their sum total of things. 1945 L. MacNeice Poems ii. 59 A little dapper man.., he lived by measuring things And died like a recurring decimal Run off the page, refusing to be curtailed. 2004 J. Houssart Low Attainers in Primary Math. vii. 115 Decimals, particularly recurring decimals, frequently arose in this lesson. < as lemmas |
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