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Interpolated Six-Place Tables of the Logarithms of Numbers and the Natural and Logarithmic Trigonometric Functions - Couverture rigide
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Présentation de l'éditeur
Only six decimal figures are retained in the logs because a 6-place table is used. When the seventh decimal figure is 5or greater, the sixth decimal figure is increased by unity. (2) Determine actual difference between next greater mantissa and mantissa read, by subtracting last figure of mantissa read from last figure of next larger mantissa; take remaining figures of difference from D-column. (3) The decimal point in a P.P. (proportional parts) reading is used merely to denote that the figure immediately preceding it is the sixth decimal figure of the proportional parts addition. The decimal point is therefore dropped when the proportional part is set down for addition. (4) A cipher gives no P.P. reading. How to Read an Antilogarithm Since the number of units in a plus characteristic always denotes one more integral figure in the antilog, and the number of units in a minus characteristic denotes the number of the decimal place of the first significant figure in the antilog, an antilogarithm is read from the mantissa only. Thus 3-726593 Next smaller mantissa 645328 29 246=3 44 4i =5 Therefore flog 13-726593 =-00532835. Important Suggestions. In the use of the tables, mistakes will be minimized and time saved by observance of the following suggestions: (1) Make it an invariable practice to set down the characteristic before reading the mantissa. (2) Locate reading in table by index finger, straightedge, card, or sheet of paper. The upper line in this symbol is a dash, meaning whose antilog ;the two lower lines are an equality sign. The symbol therefore means whose antilog equals. f Read Antilog .
(Typographical errors above are due to OCR software and don't occur in the book.)
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- ÉditeurPalala Press
- Date d'édition2015
- ISBN 10 1341129314
- ISBN 13 9781341129315
- ReliureRelié
- Langueanglais
- Nombre de pages176
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