


Description 



Decimal System: The base 10 number system that uses the digits 0, 1, 2, …, 9. The decimal system is based around units of 10. 
For example: The number 256 really means (2 x 100) + (5 x 10) + (6 x 1) = (2 x 10^{2}) + (5 x 10^{1}) + (6 x 10^{0}). The number 7.93 really means (7 x 1) + (9 x 0.1) + (3 x 0.01) = (7 x 10^{0}) + (9 x 1/10^{1}) + (3 x 1/10^{2}). Decimal System
Since the Latin prefix "decem" means "tenth," decimal means a
number based on tenths. The use of place value to represent integers in the
decimal system can also be used to represent rational numbers. We extend the
system for writing integers by using a decimal point. The decimal point
indicates that the numbers to its right are less than 1. Place value also plays
a role with the numbers to the right of the decimal. As numbers proceed to the
right, they become smaller by a power of 10.


