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" The logarithm of the root of a number is found by dividing the logarithm of the number by the index of the root. "
Encyclopędia Britannica: or, A dictionary of arts and sciences, compiled by ... - Page 72
by Encyclopaedia Britannica - 1810
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A Course of Mathematics: For the Use of Academies as Well as Private Tuition

Charles Hutton - 1812 - 620 pages
...and raising of powers by multiplying the logarithm by the index of the power, and extracting of roots by dividing; the logarithm of the number by the index of the root. For, logarithms are numbers so contrived, and adapted to other numbers, that the sums and differences...
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A Course of Mathematics: For the Use of Academies, as Well as Private ...

Charles Hutton - 1822 - 616 pages
...and raising of powers by multiplying the logarithm by the index of the power, and extracting of roots by dividing the logarithm of the number by the index of the root. For, logarithms are numbers so contrived, and adapted to other numbers, that the sums and differences...
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Encyclopaedia Britannica; Or A Dictionary of Arts, Sciences, and ..., Volume 12

1823 - 856 pages
...the remainder, we shall find the quotient. As the logarithm of any power of a number is the product of the logarithm of the number, and the index of the...•a number, by multiplying' the logarithm of the nuniber by the index of the power, or dividing it by the index of the root, and taking that number...
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Elements of Algebra: Tr. from the French of M. Bourdon. Revised and Adapted ...

Charles Davies - 1835 - 378 pages
...will result — logy= log y" = log Vy , that is, the logarithm of any root of a number is obtained by dividing the logarithm of the number by the index of the root. Consequence. To form any power of a number, take the logarithm of this number from the tables, multiply...
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Pantology: Or, A Systematic Survey of Human Knowledge; Proposing a ...

Roswell Park - 1841 - 624 pages
...found by means of a table of logarithms. In like manner, the extraction of any root is performed simply by dividing the logarithm of the number, by the index of the root, and the quotient will be the logarithm of the root required. CHAPTER HI. GEOMETRY. GEOMETRY, is that...
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Elements of Arithmetic and Algebra: For the Use of the Royal Military College

William Scott - 1844 - 568 pages
...- — . Jl Whence log. r=log. (V~a)=^^. Wherefore the logarithm of the root of a number is obtained by dividing the logarithm of the number by the index of the root. 212. In the geometrical series -^- 1 : 1+a : (1+a)2 : (1+a)3, &c., a may be assumed so small that the...
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A Glance at the Physical Sciences: Or, The Wonders of Nature, in Earth, Air ...

Samuel Griswold Goodrich - 1844 - 370 pages
...raising of powers in multiplying the logarithm by the index of the power ; and extracting of roots in dividing the logarithm of the number by the index of the root ; for logarithms are numbers so contrived and adapted to other numbers, that the sums and differences...
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Elements of Algebra: Including Sturms' Theorem

Charles Davies - 1845 - 382 pages
...r" — log. N = log. Nn = log. V-2V; that is, n The logarithm of any root of a number is obtained, by dividing the logarithm of the number by the index of the root. Consequences. To form any power of a number, take the logarithm of this number from the tables, multiply...
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Pantology; or, A systematic survey of human knowledge

Roswell Park - 1847 - 632 pages
...found by means of a table of logarithms. In like manner, the extraction of any root is performed simply by dividing the logarithm of the number, by the index of the root, and the quotient will be the logarithm of the root required CHAPTER III. GEOMETRY. GEOMETRY, is that...
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Mathematics for practical men

Olinthus Gilbert Gregory - 1848 - 572 pages
...power; and, inversely, the operation of etolution, or the extraction of roots, is performed by simply dividing the logarithm of the number by the index of the root required, the quotient will be the logarithm of the root. Examples. Square 84, cube 13, and raise 7...
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