Note that characteristic is always an
integer – positive, negative or zero, and mantissa is never negative and is always less than 1 If we can
find the characteristics and the mantissa of log n, we have to just add them to get log n Thus to find log n, all we have to do is as follows:
1 Put n in the standard form, say
n = m × 10
p, 1 <  m <10
2