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" Arithmetic, write them orderly under one another, with the signs of proportion ; then add the Logarithms of the second and third terms together, and from their sum subtract the Logarithm of the first term, and the remainder will be the Logarithm of the... "
Arithmetical Institutions: Containing a Compleat System of Arithmetic ... - Σελίδα 68
των John Kirkby - 1735 - 380 σελίδες
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The Geometrician: Containing Essays on Plane Geometry, and Trigonometry ...

Benjamin Donne - 1775 - 338 σελίδες
...have this Rule. Add the Logarithms of the fécond and third Terms together í from their Sum fubtraft the Logarithm of the firft Term ; and the Remainder will be the Logarithm of the fourth, or required Term. 35. Suppofe in the Rule of Three Direft we have this Stating, As 4.1 : 5 :: 65 ;...

The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1811 - 580 σελίδες
...Logarithms of the second and third terms together, and from their sum subtract the Logarithm of the first term, and the remainder will be the Logarithm of the fourth term, or Answer. ' Or, — add together the Arithmetical Complement of the Logarithm of the first term, and...

The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1814 - 558 σελίδες
...Logarithms of the second and third terms together, and from their sum subtract Hie Logarithm of the first term, and the remainder will be the Logarithm of the fourth term, or Answer. Or, — add together the Arithmetical Complement of the Logarithm of the first term, and...

A Treatise on Surveying, Containing the Theory and Practice: To which is ...

John Gummere - 1814 - 398 σελίδες
...from the sum of the logarithms of the second and third terms, subtract the logarithm of the , first term, and the remainder will be the logarithm of the fourth term. 2. The logarithmic sine of a right angle or 90° is 10.00000, being the same as the logarithm of the...

A New, Copious and Complete System of Arithmetic: For the Use of Schools and ...

James Maginness - 1821 - 378 σελίδες
...logarithms of the second and third terms together, and from their sum subtract the logarithm of the first term, and the remainder will be the logarithm of the fourth term, or answer. Or, add together the arithmetical complement* of the logarithm of the first term, and the...

A Treatise on Practical Mensuration in Eight Parts ...

Anthony Nesbit - 1824 - 476 σελίδες
...of the second and third terms together, and from • their sum subtract the logarithm of the first term; and the remainder will be the logarithm of the fourth term. Involution, or Raising of Pouers* RULE. ' Multiply the logarithm of the eiven nnmbcr, by the index...

Mathematical Tables for Practical Men: Comprising Several New and Useful ...

J. A. Powers - 1845 - 84 σελίδες
...logarithms of the second and third terms together, and from their sum subtract the logarithm of the first term, and the remainder will be the logarithm of the fourth term, or answer. EXAMPLE I.— To find a fourth proportional to 98.45, 1.969, and 347.2 :— Logarithm of...

A Complete Epitome of Practical Navigation ...

John William Norie - 1852 - 844 σελίδες
...logarithms of the second and third terms together, and from then- sum subtract the logarithm of the first term, and the remainder will be the logarithm of the fourth term. Or, add together the arithmetical complement* of the logarithm of the first term, and the logarithms...

A Treatise on Practical Mensuration

Anthony Nesbit - 1859 - 482 σελίδες
...logarithms of the second and third terms together, and from their sum subtract the logarithm of the iirst term ; and the remainder will be the logarithm of the fourth term. Involution, or Raising of Powers. RULE. Multiply the logarithm of the given number by the Index of...




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