floating-point representation: meaning, definition, pronunciation and examples

No. While it can represent decimal fractions, it's a specific, approximate binary encoding standard (like IEEE 754) with defined bit patterns for significand and exponent, not just 'using a decimal point'.

Because the decimal numbers 0.1 and 0.2 cannot be represented exactly in standard binary floating-point representation. Small rounding errors in their binary equivalents compound, resulting in a value very close to, but not exactly, 0.3.

It refers to a specific floating-point representation that uses 32 bits (4 bytes) total: 1 bit for the sign, 8 bits for the exponent, and 23 bits for the significand (fraction).

No. For countable items (e.g., loops, array indices) or exact monetary calculations (where pennies must be exact), integer or fixed-point/decimal representations are used to avoid approximation errors inherent in standard floating-point.

A method of encoding real numbers in a computer that uses a base (usually 2) and expresses the number as a significand multiplied by the base raised to an exponent.

Floating-point representation is usually highly technical in register.

Floating-point representation: in British English it is pronounced /ˌfləʊ.tɪŋ pɔɪnt ˌrɛp.rɪ.zɛnˈteɪ.ʃən/, and in American English it is pronounced /ˌfloʊ.t̬ɪŋ pɔɪnt ˌrɛp.rɪ.zɛnˈteɪ.ʃən/. Tap the audio buttons above to hear it.