 | Robert Simson - Trigonometry - 1806 - 546 pages
...permutation, or alternately; this word is used when there are four proportionals, and it is See N. inferred, that the first has the same ratio to the third, which...third, as the second to the fourth: as is shown in the 16th prop, of this 5th book. XIV. Invertendo, by inversion ; when there are four proportionals,... | |
 | John Playfair - Mathematics - 1806 - 320 pages
...permutation, or alternately ; this word is used when there are four proportionals, and it is inferred, that the first has the same ratio to the third which...first is to the third as the second to the fourth. See prop. 16th of this book. XV. Invertendo, by inversion : when there are four proportionals, and... | |
 | Sir John Leslie - Geometry, Analytic - 1809 - 542 pages
...products AD and BC still obtains. PROP. VIII. THEOR. Numbers are likewise proportional by alternation, or the first is to the third as the second to the fourth. Let A: B : : C : 1); then alternately A : C : : B : D. !For the extreme terms are here still retained,... | |
 | Euclid - Geometry - 1810 - 554 pages
...or alternately; this See Note, word is used when there are four proportionals, and it is inferred, that the first has the same ratio to the third, which...or that the first is to the third, as the second to |he fourth: as is shown in the 16th prop. of this sth book. XIV. luvertendo, by inversion: when there... | |
 | John Mason Good - 1813 - 714 pages
...proportional*, and it is inferred, that the first has the same ratio to the third, « hicli the •econd has to the fourth; or that the first is to the third, as the second to the fourth: as is shewn in the XVI. Prop, of this Book V. 14. Invertendo, by inversion: when there are four proportionals,... | |
 | Euclides - 1814 - 560 pages
...permutation, or alternately. This word is used when there are four proportionals, and See N. it is inferred, that the first has the same ratio to the third, which...to the fourth; or that the first is to the third, us the second to the fourth : As is shown in the ICth prop. of this 5th book. XIV. Invertendo, by inversion... | |
 | Euclides - 1816 - 588 pages
...permutation, or alternately. gee N. This word is used when there are four proportionals, and it is inferred, that the first has the same ratio to the third, which...third, as the second to the fourth : As is shown in the 16th prop. of this 5th book. XIV. Invertendo by inversion ; when there are four proportionals,... | |
 | John Playfair - Circle-squaring - 1819 - 350 pages
...permutation, or alternately ; this word is used when there are four proportionals, and it is inferred, that the first has the same ratio to the third which...first is to the third as the second to the fourth :See Prop. 16. of this Book. XV. Invertendo, by inversion : When there are four proportionals, and... | |
 | Euclides - 1821 - 294 pages
...alternando ; when it is concluded, that if there be four magnitudes of the same kind proportionals, the first is to the third as the second to the fourth. Note. In this the antecedents are compared with one another, and the consequents with one another;... | |
 | George Crabb - Industrial arts - 1823 - 704 pages
...order or magnitude of the proportionals, as — Alternate proportion, when the first of four magnitudes has the same ratio to the third which the second has to the fourth ; thus the ratio of A to C, fig. 32, being the same as B to D, the proportion is alternate. — Inverse... | |
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This word is used when there are four proportionals, and it is inferred that the first has the same ratio to the third which the second has to the fourth ; or that the first is to the third as the second to the fourth : as is shown in Prop. 
