An intire system of arithmetic: or, Arithmetic in all its parts. Containing I. Vulgar; II. Decimal; III. Duodecimal; IV. Sexagesimal; V. Political; VI. Logarithmical; VII. Lineal; VIII. Instrumental; IX. Algebraical. With the arithmetic of negatives, and approximation or converging series ... With an appendix, shewing the mensuration of ... superficies and solids / Written by Edward Hatton gent.

Edward Hatton

Date:: 1721

Credit: An intire system of arithmetic: or, Arithmetic in all its parts. Containing I. Vulgar; II. Decimal; III. Duodecimal; IV. Sexagesimal; V. Political; VI. Logarithmical; VII. Lineal; VIII. Instrumental; IX. Algebraical. With the arithmetic of negatives, and approximation or converging series ... With an appendix, shewing the mensuration of ... superficies and solids / Written by Edward Hatton gent. Source: Wellcome Collection.

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Ways, with the Reafon of the Method of Operation, and how to find ad the even Parts of any Numbers, which is applied in finding the Aliquot Parts of a Pound Sterling, &c. And befides the plain and befl Way of Extracting the Square and Cube Roots of Numbers, 1 have given Rules how to do that of the Biquadrate by an Example altogether New, and mufl be efieemed Curious, efpecially to thofe who are not acquainted with Algebraic Canons. In Progreffion you have feveral things not to be found in other Bcoks of this Subjeti; as Rules to find the 'Total of a Series pro¬ duced by different Pallors, and of the Changes to be rang on any Number, of Bells, dec. with the Reafon of the Abftrufe Rules for finding the To¬ tals of Series’s, whether the Ratio be Arithmetical or Geometrical: And have recommended this Part of Arithmetic to the Learner's Perufal, and not to be paffed over, as is too common both in Books and Schools. And whereas others on this SubjeEl give but four, or at mcfl five kinds of Rules of Proportion, l have in this Treatife exhibited T welve. The Rules of Practice are far more Numerous, Brief, and Methodical, than any done by another Hand: And here are many things more than common in Fellow Blip, as three fever al Ways of anfwering Quefticns, dec. as alfo Alligation, Barter, and Equation of Payments. In Decimal Arithmetic (befides the Hint given of a New Specie there¬ of) you have fo many things truly Novel and Curious, efpecially in Re duel ion and Multiplication, as would be too prolix to enumerate; where you will find fome Anfwers exhibited by fixrf and accurate Methods quite contrary to the General Rules given for Addition and SubftraBion ; i. e. By Adding and Sub fir aBing one and the fame Number, as Units to Tens place, &c. and the contrary. And in the Ufe of Decimals, befides the. Way of anfwering any Qiieflion by Decimals as exallly as by Vulgar Frallions (which to me is wholy new) you have the only Genuine Tables of Difcount that I know extant, with a New as well as more Brief and Eafy Method of Computing both Difcount and Prefent Worth of any Sum for Days, (fo much praElifed by Traders) the Foundation of which you will find in Algebra, Chap. 10. I have next /hewed the Arithmetic of Duodecimals and Sexagefimals; the former ufed in Menfuraticn of Superficies and Solids, the latter (chiefly) in Aftronomy, whence called by fome Afironomicals: and thefe I have done in .a new plain Method, and for the more difficult Cafes. As to Political Arithmetic, I have faid enough to fhew its Nature and Manner of Procejs to difeover what is required, illuflrating the fame by Examples, and have ref erred to others who have purpofely and wholly treated thereon. In Loga¬ rithms / have omitted nothing that I could find necelfary or deficient in other Authors 3 and believe I may with Veracity affirm, That no Book

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