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Find from the table the logarithm of the first four figures, and to it prefix a characteristic less by unity than all the places of figures in the given number. Take from the last column on the right of the page, marked D, the number on the same horizontal...
Elements of Surveying: Including a Description of the Instruments and the ... - Page 12
by Charles Davies - 1837 - 249 pages

## Elements of Surveying: With the Necessary Tables

Charles Davies - Surveying - 1830 - 392 pages
...the number on the same horizontal line with the logarithm, and multiply this number by the numbers that have been considered as ciphers : then, cut off...the product, so obtained, to the first logarithm, for the logarithm sought. Let it be required to find the logarithm of 672887. The log. of 672800 is...

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

Robert Gibson - Surveying - 1833 - 436 pages
...this number by the numbers that have been considered as ciphers : then, cut off from the right-hand as many places for decimals as there are figures in...the product, so obtained, to the first logarithm, for the logarithm sought. Let it be required to find the, logarithm of 672887. The log. of 672800 is...

## Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1836 - 359 pages
...the number on the same horizontal line with the logarithm, and multiply this number by the numbers that have been considered as ciphers : then, cut off...add the product, so obtained, to the first logarithm : this sum will be the logarithm sought. Let it be required to find the logarithm of 672887. The log....

## A Table of Logarithms: Of Logarithmic Sines, and a Traverse Table

Logarithms - 1836 - 177 pages
...this number- by the numbers that have been considered as ciphers : then, cut off from the right-hand as many places for decimals as there are figures in...the product, so" obtained, to the first logarithm, for the logarithm sought. Let it be required to find the logarithm of 672887. The log. of 672800 is...

## Elements of Surveying: With a Description of the Instruments and the ...

Charles Davies - Surveying - 1839 - 376 pages
...if any dots shall have been passed over, in passing along the horizontal line : thus, " log 3008 — 3.491081 the 49 from the column 0, being taken from...find the logarithm of 672887. log 672800 = 5.827886 bting multiplied by 87, the figures regarded as ciphers, gives for a product 5655 ; then pointing off...

## Elements of Surveying with a Description of the Instruments and the ...

C. Davies - Surveying - 1839 - 380 pages
...or is expressed by five or more figures. 9. Consider all the figures, after the fourth from the lefi hand, as ciphers. Find from the table the logarithm...find the logarithm of 672887. log 672800 = 5.827886 bting multiplied by 87, the figures regarded as ciphers, gives for a product 5655 ; then pointing off...

## The National Arithmetic, on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - Arithmetic - 1839 - 305 pages
...Write the numbers under each other according to their value, add as in ii'linli: numbers, and point off" from the right hand as many places for decimals, as there are in either of the numbers. 2. Add together the following numbers — 81.61356, 6716.31, 413.1678956,35.14671,...

## Elements of Surveying, and Navigation: With a Description of the Instruments ...

Charles Davies - Navigation - 1841 - 406 pages
...the column 0, being taken from the line 310. When the number exceeds 10,000, or is expressed by Jive or more figures. 9. Consider all the figures, after...places of figures. The corresponding number, in the column .D is 65, which being multiplied by 87, the figures regarded as ciphers, glves for a product...