In computing, fixed-point is a method of representing fractional (non-integer) numbers using an integer together with an implicit or explicit fixed scaling factor. Dollar amounts, for example, may be represented with exactly two fractional decimal digits, corresponding to cents. More generally, fixed-point values can represent integer multiples of a fixed unit, such as a fraction of an hour represented as an integer number of seconds. Fixed-point representation is commonly contrasted with floating-point representation, in which the scale varies with an exponent.