how to use log table
Asked by devsingh71
| 26th Jun, 2014,
08:40: PM
Expert Answer:
The logarithm of a number is the exponent to which another fixed value, the base must be raised to produce that number.
To simplify difficult calculations, logarithms is a good tool.
These tables listed the values of logb(x) and bx for any number x in a certain range, at a certain precision, for a certain base b (usually b = 10).
For example, consider the number 567894.
logarithms of the number 567894 = log(567894).
The number of digits in the given number is 6.
Therefore the characteristic of the given number is 6 - 1 = 5.
Now let us find the mantissa part of the number 567894.
From the table, find the row with n=5.67.
Find the column 8, the number inside the cell is 0.754195
Now add the characteristic and mantissa.
Thus log(567894)=5 + 0.754195 = 5.754195
Observe the following screen shot.
Answered by Vimala Ramamurthy
| 27th Jun, 2014,
11:32: AM
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