 | Henry Sinclair Hall, Samuel Ratcliffe Knight - Algebra - 1897 - 552 pages
...common logarithms : 10. 1.8156. 12. 4.0022. 14. 3.8441. 11. 2.1439. 13. Г.9131. 15. 7.4879-10. 447. Cologarithms. The logarithm of the reciprocal of a number is called the cologarithm of that number. Thus colog 210 = log^ = logl - log 210. Since log 1 = 0, we write it in the form 10 —... | |
 | George Albert Wentworth - Arithmetic - 1898 - 424 pages
...= 1.5849 1.3720 = log 23.55. Therefore, 905.6 -f- 38.45 = 23.55. 657. The Cologarithm of a Number. The logarithm of the reciprocal of a number is called the cologarithm of the number. Thus, colog 30 = log ^ = log 1 — log 30. Since log 1=0, log 1 — log 30 = — log 30. Now, in the... | |
 | George Albert Wentworth - Arithmetic - 1898 - 424 pages
...= 1.5849 1.3720 = log 23.55. Therefore, 905.6 -f- 38.45 = 23.55. 657. The Cologarithm of a Number. The logarithm of the reciprocal of a number is called the cologarithm, of the number. Thus, colog 30 = log 3V = log 1 — log 30. Since log 1 = 0, log 1 — log 30 = — log 30. Now, in... | |
 | George Albert Wentworth - Algebra - 1898 - 428 pages
...6656 is f of 1 = 0.7, and the fifth significant figure of the required number is 7. Cologarithms. 431. The logarithm of the -reciprocal of a number is called the cologarithm of the number. If A denotes any number, then colog A = log i = log 1 - log A (§ 413) = - log A (§ 416). ./1 Hence,... | |
 | George Albert Wentworth - 1898 - 112 pages
...fifth significant figure of the required number is 7. Hence, the required number is 0.0066567. 21. The logarithm of the reciprocal of a number is called the cologarithm of the number. If A denote any number, then colog A = log - = log 1 — log ^4 (§ 3) = — log^l (§ 6). Hence, the... | |
 | George Albert Wentworth - 1898 - 424 pages
...= 1.5849 1.3720 = log 23.55. Therefore, 905.6 -=- 38.45 = 23.55. 657. The Cologarithm of a Number. The logarithm of the reciprocal of a number is called the cologarithm of the number. Thus, colog 30 = log ^ = log 1 — log 30. Since log 1 = 0, log 1 — log 30 = — log 30. Now, in... | |
 | Daniel Alexander Murray - Plane trigonometry - 1899 - 350 pages
...and following figures treated as a decimal; and add the product to the mantissa just found. NOTE 4. The logarithm of the reciprocal of a number is called the cologarithm of the number, or the arithmetical complement of the logarithm of the number. For instance, log -j|5 = colog 325.... | |
 | William James Milne - Algebra - 1901 - 462 pages
...and division with the aid of logarithms, the latter method of dividing is the more convenient. 468. The logarithm of the reciprocal of a number is called the Cologarithm of the number. The cologarithm of 100 is equal to the logarithm of T^5, which is — 2. The cologarithm 100 is - 2... | |
 | William James Milne - Algebra - 1902 - 620 pages
...and division with the aid of logarithms, the latter method of dividing is the more convenient. 476. The logarithm of the reciprocal of a number is called the Cologarithm of the number. The cologarithm of 100 is equal to the logarithm of т£„, which is - 2. The cologarithm of 100 is... | |
 | George Albert Wentworth - Plane trigonometry - 1902 - 286 pages
...may be carried to five significant figures, and in the first part of the table to six figures.* 20. The logarithm of the reciprocal of a number is called the Cologarithm of the number. If A denotes any number, then colog A = log -. = log 1 — log A (§ 3) = — log A. Hence, the cologarithm... | |
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The logarithm of the reciprocal of a number is called the Cologarithm of the number. 
