| 单词 | to extract the root of a number or quantity |
| 释义 | > as lemmasto extract the root of a number or quantity 5. Mathematics. to extract the root of a number or quantity: to obtain the root by a mathematical process. Also †to extract (a quantity): to find the root of. ΚΠ ?a1560 L. Digges Geom. Pract.: Pantometria (1571) ii. xxii. sig. P ij From the quotient thereof..extracte the quadrate roote. 1676 J. Glanvill Ess. iii. 13 The Method of Extracting Roots in the most numerous Æquations. 1728 E. Chambers Cycl. at Extraction To extract the Root out of a given Power, is the same Thing as to find a Number, e. gr. 4, which being multiplied a certain Number of Times into it self, produces the given Power, e. gr. 16 or 64. 1827 O. Gregory Hutton's Course Math. (ed. 9) I. 86 Mixed numbers may be..extracted by the first or second rule. 1827 O. Gregory Hutton's Course Math. (ed. 9) I. 89 Extract the cube root of 571482·19. < as lemmas |
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