Half

is the fraction between 0 and 1.

Math features

 * 0.5 is a power of 2, even though it is not an integer.
 * 0.5 is the reciprocal of 2.
 * 0.5 can also be expressed as:
 * 50%
 * 0.5 is one of 12 decimals to get a Roman numeral.
 * 50%
 * 0.5 is one of 12 decimals to get a Roman numeral.
 * 0.5 is one of 12 decimals to get a Roman numeral.