how to find antilog of a negative and a positive number?
Here is an example
The digits before the decimal becomes the mantissa.
To find the value of antilog negative value..
- Ignore the negative sign.
- Add one to the characteristic and write it in the negative power of 10. i.e. 10-6
- substrate characteristic from 1 and write it in the multiple of 10-6.
=0.6 x 10-6
Add we will look for the value in 0.60th row, 0th column of the antilog table, which is 3989.
Therefore, antilog(-5.4)=3.989 x10-6
To learn how to calculate log and antilog , you can refer to the following link also..
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Antilog of +ve no.
2030 is the mantisa.
find the antilog of the mantisa only using the antilog table.
look for the value corresponding to 20 in the row and 3 in the column and to this add the value in the third column corresponding to 0.
you should get 1596 + 0 = 1596
now always put a decimal point b/w the first 2 digits of this obtained no. and multiply it with 10 raised to the characteristic.
so, 1.596 x 107 where 7 is the characteristic.