| William Webster - Arithmetic - 1740 - 226 pages
...II. The laft Term. lit. The number of Terms. IV. The equal Difference. V. The fum of ail the .Terms. **Any three of which being given, the other two may be found;** as Mr. Oughtred in his Claiiii Ma-themettict, Chap. 19. Prop. the 6th, exemplifies in 10 propofitions;... | |
| Solomon Lowe - Arithmetic - 1749
.../. (3) The number of terms, n. (4) The common difference, J. (5) The fum of all the terms, s : (II) **any three of which being given, the other two may be found** : as may be feen in a feries of 20 proportions in Oughtred's clavis math. 29. 4. Seealfo Malcolm, arithm.... | |
| Anthony Birks, John Birks - Arithmetic - 1766 - 642 pages
...Alfo42 . 35 . 28 . 2i . 14. 7_j_ common difference 7. In an arithmetical progreflion are five things ; **any three of which being given, the other two may be found,** which admit of twenty different propofitions« 3 I. The 3 105 35 5 105 21 7 105 15 15 105 7 21 105... | |
| John Mair - Arithmetic - 1772 - 376 pages
...16 : 32 : 64 feries. In a geometrical progreffion, or feries, five things occur to be conf1dered j **any three of which being given, the other two may be found.** The five things are, 1. The leaft term, 1 v II. The>eateftterm.fExtremes' III. The number of terms.... | |
| Charles Vyse - Arithmetic - 1785 - 325 pages
...The Number of Terms. 4. The common Excefs or Difference. 5. The Aggregate or Sum of all the Terms. **Any three of which being given, the other two may be found.** PRO- I « PR-O POSITION I. When two Extremes and the Number ,of Terms are given, to find the Sum of... | |
| John Thomas Hope - Arithmetic - 1790 - 387 pages
...2. Alfo 42, 35,28,21, 14, 7, common difference 7. In an Arithmetical Progreffion are five tiling«, **any three of which being given the other two may be found,'** which admit of twenty different proportions. lit. The firft term commonly the bail."} 2d, The laft... | |
| Michael Walsh - Arithmetic - 1801 - 268 pages
...2. .The la ft term. 3. The numb т oi terms. 4. The equal difference. 5. Tha fum of all the terms. **Any three of which being given, the other two may be found.** The ßrfl. Jccond and third term given toßnd theßfth. RULE. Multiply the fum of the two extremes... | |
| Charles Vyse - Arithmetic - 1806 - 342 pages
...3. The Number of Terms. 4. The common Excess or Difference. 5. The Aggregate Sum of all the Terms. **Any three of which being given, the other two may be found.** PROPOSITION I. RULE. Multiply the Sum of-Jthe two Extremes into the Number •f Terms, and divide the... | |
| Samuel Webber - Mathematics - 1808 - 522 pages
...Problem, are the latitude of the place, and the sun's altitude, decimation, and azimuth, and the hour ; **any three of which being given, the other two may be found** by^the solution of an oblique spheric triangle. Hence several useful Problems are formed, three of... | |
| Beriah Stevens - Arithmetic - 1822 - 423 pages
...: 4 : 8 : 16 : 32:64. In a geometrical progression, or series, five things occur to be considered ; **any three of which being given, the other two may be found.** The five things arc, 1. The least term. tc , o TU ... t Extremes. 2. 1 he greatest terms. $ 3. The... | |
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