Logarithms to Base 10
Because number 10 is the base of writing numbers, it is very convenient to use logarithms to the base
10 Some examples are:
log10
 10 = 1,
since 101 = 10
log10 100 = 2,
since 102 = 100
log10 10000 = 4,
since 104 = 10000
log10 0 01 = –2,
since 10–2 = 0 01
log10 0