A floating-point number is a finite or infinite number that is representable in a floating-point format, i.e., a floating-point representation that is not a NaN. In the IEEE 754-2008 standard, all floating-point numbers - including zeros and infinities - are signed.

arithmetic | biased exponent | floating-point algebra | floating-point arithmetic | floating-point exponent | floating-point normal number | floating-point preferred exponent | floating-point quantum | floating-point representation | IEEE 754-2008 | interval arithmetic | NaN | quiet NaN | signaling NaN | significand | subnormal number