Radix Point

In mathematics and computing, a radix point (or radix character) is the symbol used in numerical representations to separate the integer part of a number (to the left of the radix point) from its fractional part (to the right of the radix point).

"Radix point" is a general term that applies to all number bases.

In base 10 notation, the radix point is more commonly called the decimal point, as the prefix deci- implies base 10.

Similarly, the term "binary point" is used for base 2.