Arun Kumar
Last Activity: 10 Years ago
Hello
I saw your question in the image.
Its not a round off!!!!.
To avoid the need for separate tables to convert positive and negative logarithms back to their original numbers, a bar notation is used. The bar over the characteristic indicates that it is negative whilst the mantissa remains positive.
So here in your example
-(12-0.4941)=-11.5059
Thanks & Regards
Arun Kumar
Btech, IIT Delhi
Askiitians Faculty