Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -
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The machine reads it as
- Proportion, as the Numbers ther ansiver ro do ) Losarithm oF 9, che Tourid a midale PrOPOF.
- in a Geometrical onc. AS For Fxaiple,
- tionat berrveen the ablolure Numbers r and 10
- 2. 4. 8. 76, 32,. 64. F28: 256. are NNum- encreased wich seren Crphers cach: Then ctiac
- bers procecdlins from Vnier, in a Geometrical Number noc beins exactly the absolute Numi:
- Propoirion continued. Nou il over thele vou ber 9, but bigger ox lesser chan 9, (wich seven
- place a Series of Numbers, (beginning wicho
- Erphers added r0 ic) cher accordinsly found
- in an Arichmetical Proportion, ther vill sand our neu Geometrical mean Proportionals De-
- chuS,
- treen char Number and 10, il ic vere less;
- and betreen that and the next lels chan ic, a5
- 1. 2. 4. 8, 16. 32, 64. 128, 256, 572, 690. Soon as ir came robe bigger, Coc. rill at last, 2F-
- ter a prodigious Number oF Tria(S, (viZ. 25.
- and the Numbers abore, beginming with (0) ther came ro the absolure NTumber 8, 9999998.
- and Rrichmerically Proporrional, are called Lo- which approacheth very neaF 1O 9, 0000000
- Sarithms.
- 2. The Addirion and Substraction OE Loga
- And in order to find the Locarithm ot this Num-
- ber 8, 9999998, ther found an Arichmerical
- richms ansivers t0 che Mulriplication and Diri- mean Proporional between the Locarithm otc
- sion oF the Numbers ther ansiver 1O. Thus the and 10 (2. e. betreen 0000000 and 10000000.)
- Locarithm 2 added ro 4, makes the Logarithm And then anocher becween that so found, and
- oF 6, Whole correspondins Number is 64, (the 10000000 again; and (0 on, rill at last chey
- Product oF the Number + mulriplied into 16.
- AIO rhe Lorarirhm 5 Tubstracted trom 9 leares
- the Lozarichm oF 4, Wrhose Number i5 16, (c
- qual 2o 5F2 dirided by 32.
- And the Case vould be the lame if any orher
- Rank oF Numbers in an Arichmerical PFOPOE-
- tion vere made ro anliver ro the Numbers be.
- came 10 0, 95424250, the exact Losarithm
- OE 9
- They vere Corced to proceed aster the same
- manner also t0 sain the Locarithm OF 5; BUE
- then cheir Work oreu somethins calier, and
- more expeditious.
- T. For since by diridins 10 bY 5, che Ouo-
- Lor. Andtheretore chere mar be manz Porrs of rient is 2; cheretore the Losarithm oF 5, sub.
- Losarithms, 25 indeed there are.
- Aracted from ehe Losaritum oF 10, must sire
- And chus also ill FxEraCtIOn OF ROOrS bC the Locarithm OF 2
- pertormed by biffectinq the Lorarithms oF any
- 2. And as r0, mulriplied b7 2, sires 203
- Numbers For the Square ROOr, and trisectins (cheretore che Lorarithm oF 2 added ro rhe Lo5a-
- them For the Cube: A5 For Instance,
- T0 extract che Square R0orOF 256, divide
- its Losarithm 8 by 2, and ic ill quore 4; Which
- Cocarichmick Number 4, hach For ies absolure
- Number 16, and cherefore 16 is the Square
- ROOT OF 256.
- To extract the Cube ROOEOF 64, divide its
- Cosarithm 6by 3, and che Ouore will DC 2:
- wtrich is the Locarithm OF 4, the Cube ROOr
- OC 64.
- 3. T0 apply chis Mattes For the matins oF
- Cannon Or Table oE Lorarithms, thac Bould an-
- Tiver ro Common Numibers in cheir natural Or
- der, che Inrenters procceded in this Merhod:
- Ther pirched on those which are naturalI
- Ceometrically proporrional; a5,
- Fy YO, 10O, 1O9O, 1OGDO, 269D0O, 1000009, 1000000D, C.
- And co chesether sirted nor che sinele Locarichms.
- 6, 2, 29 3, (90. 25 in oux Instance (NNumb. L. )
- abore, bur those auxmenced ich many Cy-
- rithm ot 10, sires the Lozarithm Ot 20.
- 3. Since che Square ROOr oF 9 is 3, there-
- FOre The Locarithm oF 9 beins divided bY 2, OF
- halved, must sire the Locarithm oF 3
- 4. BY substractins the Losarithm oF any one
- known Number, from that oF another, voi
- have the Locarithm oF che Duorient oE che FOF-
- mer Number diridins the latrer
- And atrer this ox the like manner they pro-
- cecded rill chey trad compleaced che C annOn OF
- Locarithms eo Numbers reachinq +O 10000.
- It ron ould sec au easie and expeditions
- Way oE makinu several TOrES OF Locarithms 1O a
- larse Radius, consule CapF. Fdm. FTalley5 Dis-
- course in Phil. Trans. NV. 216. WWhero From thc
- pure Consideration DF Numbers, and wichal by
- the Lelp oF MIT. I. NemronS Mechod ot findina
- the 2noiae ot the Numbers ot a Binomial Pou-
- ex, he Mens horr ro tind readily the Locarithms
- oF all Numbers r0 abore 30 Places; and he
- sires there sereral Series For this Purpole, some
- universal, aud some appropriared io peculiar
- phers, in OrdeE FO AE PFOPeF Locarithms FOF aII POrES OF Locarithms
- intermediare Numbers between L and 10, 10
- and 200, 700 and 1000, C9c. Ther made
- cheretore 0000000 10 bc the Locarithm oF 1
- and 10000000r0 be the Locarithm oF 10; alsc
- 20000000 they pur For the Locarithm OF 100
- and 30000000 For the Lorarithm of 1000, ma
- Kins Aillthe Index Or Characteristick OF the Loga
- rithm co be one lels chan the Number ot Places
- Nicholas Mercator also did a g00d wrhile since
- make some improvements in this AHair, ot
- utck rou hare Dr. WallisS Fhouxlus in Phil.
- Trans. N. 38.
- And Zohn Grexory hach also Mewd a way 10
- mate Losarichms 20 25 Places, by means ot chc
- Fsyperbola
- For che Characteristicke oC a Losariibm: sec
- in the Absolure Number, because ches appoinced in Index.
- wich chole appointed For 1, 10, 100, 10000, C.
- extrieh victi most indetatisable lals allu Calc
- Mey canie etelet ta otde (2. 2) 10 8ec e
- 0000000 a5 the Lorarithm ot 1.
- 3. Duc then che grearest Ditticuler and l’ains
- Was vet eo come, vrtrich Wvas ro And Locarithms
- For all che iutermediare Numbers correspondine
Cite
Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. - . Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/806933011:0478?run=74