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# Decimal point

A **decimal point** is a period character separating the integer part of a number from its fractional part when written in the decimal numeral system. For example, in 3.125, the decimal point separates the "3" from the "125"; the former represents the integer part of while the latter represents the fractional part .

The OEIS contains the decimal expansions of many important constants like as a sequence of digits 0 to 9, e.g., 3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5, 8, 9, 7, 9, etc. (see A000796). These can be searched for (in the "Classic" side of the OEIS) by entering them in the search box with a decimal point; thus "3.14159" should bring up A000796 as the top result. (They can of course also be searched for as comma-separated digits).