 | William Henry Metzler, Edward Drake Roe, Warren Gardner Bullard - Algebra - 1908 - 370 pages
...COLLEGE ALGEBRA In practice this is done mentally by beginning at the left and subtracting each digit from 9, except the last significant digit, which is subtracted from 10. 279. Computation by logarithms. EXAMPLES 1. Find the value of 2345 x 2.327 x .004296. log (2345 x 2.327... | |
 | Alfred Monroe Kenyon, William Vernon Lovitt - Mathematics - 1917 - 384 pages
...done mentally by beginning at the left not omitting the characteristic, and subtracting each digit from 9, except the last significant digit, which is subtracted from 10. In the process of division subtracting the logarithm of a number and adding its cologarithm are equivalent... | |
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In practice this is done mentally by beginning at the left and subtracting each digit from 9, except the last significant digit, which is subtracted from 10. 