| 单词 | artificial number |
| 释义 | > as lemmasartificial number artificial number n. [after post-classical Latin numerus artificialis ( J. Napier Mirifici logarithmorum canonis constructio (1619) 16)] Mathematics (now historical) a logarithm. ΚΠ 1653 Ld. Brouncker Animadversions in tr. R. Descartes Excellent Compend. Musick 87 (heading) In artificiall numbers, or logarithmes. 1654 J. Newton Institutio Mathematica sig. A3 The proportions in the usuall Cases of all Triangles both Plain and Sphericall, we have first cleared by Demonstration..; and then explained the manner of the work in Natural and Artificial Numbers both. 1790 J. Malham Navigation Made Easy i. i. 53 You are then to observe, that every natural number, which consists of two or more places, has an index before its corresponding logarithm or artificial number, with a point or dot subjoined to separate them. 1891 Amer. Jrnl. Math. 14 80 In Napier's tables, k = −10,000,000, and his ‘artificial numbers’..contained another constant. 1924 Math. Gaz. 12 168 Napier in the Constructio (1616) used the term artificial number instead of logarithm. < as lemmas |
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