| 释义 |
logarithmical, a.|lɒgəˈrɪθmɪkəl, -ɪð-|
[f. as prec. + -al1.]
= logarithmic. logarithmical scales (see quot. 1727–41).
1631H. Briggs (title) Logarithmicall Arithmetike. 1665–6Phil. Trans. I. 215 The Logarithmical Tangent-line. 1727–41Chambers Cycl., Proportional scales, called also logarithmical scales, are the artificial numbers or logarithms, placed on lines, for the ease and advantage of multiplying, dividing, &c. by means of compasses, or of sliding-rules. 1728Pemberton Newton's Philos. 145 That line..which is now commonly known by the name of the logarithmical curve. 1799Young in Phil. Trans. XC. 150 The inner circle L is divided into 30103 parts, corresponding with the logarithmical parts of an octave. 1812–16Playfair Nat. Phil. II. 47 Formulas..more convenient for logarithmical calculation. 1839Hallam Hist. Lit. IV. iii. viii. §8. 7 Thus reducing the error, which, strictly speaking, must always exist from the principle of logarithmical construction, to an almost infinitesimal fraction.
Hence logaˈrithmically adv., by the use of logarithms; in logarithmic proportions.
1760Pemberton in Phil. Trans. LI. 923 The present methods of computing logarithmically an angle from the three sides of a spherical triangle given. 1828Hutton Course Math. II. 328 Expressing this equation logarithmically. 1875Jevons Money xxiv. 332 The ratios in which their gold pieces have changed would be calculated logarithmically. |