Mosey on over to http://www.logcabinrf.com/coffee.htm . There you will see a fine log table.
On the off chance that you meant a table of logarithms rather than a piece of furniture, you can look here: http://www.sosmath.com/tables/logtable/logtable.html .
2006-10-14 07:38:18
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answer #1
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answered by Pascal 7
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How to use "modern" log tables
This box describes the so-called four figure tables, which are the easiest to use and suitable for most calculations. The more accurate six and seven figure tables are more difficult to describe and were never in common usage.
First of all, thinking about powers of 10, we can write
101 = 10
102 = 100
103 = 1000
104 = 10000
105 = 100000
106 = 1000000
and so on...
Now, if we multiply ten thousand by one hundred we get one million, or writing this down:-
10,000 Ã 100 = 1,000,000
0r
104 Ã 102 = 106
(Notice 4 + 2 = 6)
In other words, we can multiply two numbers by adding their powers. These powers are the logarithms of the numbers. For instance, the logarithm of 100 is 2.
This is the modern way of describing logarithms, they are powers of a particular base. In the case we are looking at, the base is 10. (Sometimes written Log10). Note that this is different to the original Napier Logarithms, which were derived by repeated multiplication by a number close to, but smaller than, one (1-1/107).
What about the logarithm of 101 or 15.27?
This is where the tables come in, they contain all the intermediate values to fill in the gaps between 10 and 100 and 100 and 1000 and so on.
To make the tables a manageable size, they do not contain the logarithms of all possible numbers, instead, the logarithm is split into two parts, separating the size of the number from its value.
to see & learn more please check this site :
http://www.oldcomputers.arcula.co.uk/bhist3.htm
2006-10-14 14:36:23
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answer #2
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answered by Anonymous
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if u want to find out log of 675 using log table just see in row 67 column 5 and as there is no fourth digit so no use mean differeance
if you want to find antilog of 675 using antilog table as there is no decimal point consider it before 6 as[0.675] and see .67 row 5 column and consider mean difference 0 and add it and as there are three digit after decimal point write[3.---]as your answer if you like my asistance you can ask further qestion
2006-10-14 16:17:18
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answer #3
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answered by prash 1
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if u want to know log348, 1st search for row with no 34 and then column 8 that coincides with row no 34.
2006-10-16 06:37:25
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answer #4
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answered by HunterKid! 2
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