where each of the and is a digit in the decimal system (one of ). In this decimal expansion,
the -th decimal place to the left of the decimal point is the position of , and
the -th decimal place to the right of the decimal place is the position of .
The digits and are called the decimal place values. is the decimal place value corresponding to the -th decimal place to the left of the decimal point, while is the decimal place value corresponding to the -th decimal place to the right of the decimal point.
For decimal places closer to the decimal point, specific names are used. Below are some of the most commonly used names:
|name||position from||direction from||example|
|the decimal point||the decimal point||(position of 7)|