This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1740 Excerpt: ...to render thefe Logiftical Logarithms for Motion ufeful for the Ounces and Pounds in an hundred Weight j and that with great Eafe, (ince 1792, the Number of Qunces in an hundred Weight Averdupoife, is nearly half the Number 3600," the Seconds of the Table. Confequently, the Logiftical Logarithm of the Double of any ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1740 Excerpt: ...to render thefe Logiftical Logarithms for Motion ufeful for the Ounces and Pounds in an hundred Weight j and that with great Eafe, (ince 1792, the Number of Qunces in an hundred Weight Averdupoife, is nearly half the Number 3600," the Seconds of the Table. Confequently, the Logiftical Logarithm of the Double of any Number of Ounces, is that required for the Pounds and Ounces equal thereto. 17. Or, laftly, tis eafy for any one who fhali think it worth while, to calculate Tables of Logiftical Logarithms for any Species of Computation peculiar to it felf. Thus with refpect to Money, if the common Logarithms of all the Farthings under 960, be fubdutfied from the conftant Logarithm of 960, the Remainders will be the Logifticat Logarithms of the Farthings in a Pound. The common Logarithms of all the Numbers of Ounces under 1792 fubftracled from the conftant Logarithm of the faid Number 1792, will leave the Logiftical Logarithms of all the Ounces in an hundred Weight. And thus you proceed to make Logiftical Logarithms of any Kind you pleafe, or may have occafion for. Which is too eafy a matter to require an Example, befides. thofe above, Art. 7, and 8. LOGARITHMOLOGY. PART II. Tpraxis /"logarithms, Common and Logiftical; ' With its Application to Vulgar and Duodecimal Arithmetic, Plain and Spherical Trigonometry y Navigation, Menfuration of Superficies and Solids, Gauging, Timber-MeaJ'ure, Afironomy perform'd Numerically and Injlrumentally. CHAP. I. Of the Rules of Addition, Substr Action, Multiplication, and Division of the Indices O/'logarithMs. I. A S the Theory of Logarithms has been largely /. premifed, the Rules for a Practical Ufe and X JL Management of thofe artificial Numbers will from thence be eafily underftood, and the Rationale of every Oper...
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