COM1100 -- Winter2000 -- Yuhong Yin
4
Decimal number expression
nA decimal number can thus be expressed as:
ndn * 10 n + dn-1 * 10 n-1 + …+ d1 * 101 + d0 * 10 0 
nwhere, dj  is one of the ten decimal digits  0 ~ 9
n             10i  is the power of 10 of each digit dj that defines its positional significance, or simply the power of that digit.
nFor example,
n( 845 )10   = 8 * 102 + 4 * 101 + 5 * 100
n    = 8 * 100 + 4 * 10 + 5 * 1
nWe will use ( 845 )10 to represent a decimal number.
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