The calculator: being correct and necessary tables for computation. Adapted to science, business, and pleasure / By James Dodson.

  • James Dodson
Date:
1747
Catalogue details

Licence: Public Domain Mark

Credit: The calculator: being correct and necessary tables for computation. Adapted to science, business, and pleasure / By James Dodson. Source: Wellcome Collection.

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    gi. To find the Prefent Worth (p) of any Annuity (a), payable by equal haif yearly (h) or quarterly (q) Payments, for axy Number of Years (n) at the Rate (r). Now (Ta). 5.) 2. & r. give D; (Tab. 8.) b. org. & r, giveK s and D'=Dx4&+1: Then, p=aD EXAMPLE. What is the Prefent Worth of an Annuity of 1007. per Ann, payable quarterly for 7 Years, at 42 per Cent. per Annum ? D=5,89270r. And K=,016720 83600 = 5K $9370 ace & 1505 =# zo5oK. 33 = xr0002 K 12 = r03007 K iE Gene 5.991227 D! And (p= aD! = 5,991227 X 100s) 599,1227 7. the Prefent Worth required. 32. To find the prefent Value (p) of any Annuity (a), to continue during & Life of a given Ave (y), at any Rate of Intereft {pecified in Tab, 6. Now y. & r. give Z in (Tab..6.); Then, para kw 33. To find the prefent Value (p''&P') of any Anniity (a) to continue ‘during the Life of the foorief? and longeft Liver, of two Perfons of the Ages y' and y''; at any Rate of Intereft fpecified in Tab. 6. Now, (Tab. 6.) yl. & r. give B's yl. & 4. give Elts And EA’ + E = MM: (Tab. 6.) L. & r. giveR; y'.&r. give; y &r. give Fl's : And Fl F' 4. R=X; y. & r. give G'; y!! & r. give G's; and G'+G'=Z: Zt ge The Numbers to the Logarithms X; Z, are x, 2; let 9= Then, p==a9; and P'=M— axe. C2 an
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