rounding-down function

noun

UK /ˈraʊndɪŋ daʊn ˈfʌŋkʃən/

US /ˈraʊndɪŋ daʊn ˈfʌŋkʃən/

A rounding-down function is a math rule that gives you the biggest whole number that is not bigger than your number.

Using the rounding-down function, 4.9 becomes 4.

SYNONYMS

floor function greatest integer function round-down floor

RELATED WORDS

rounding integer decimal ceiling function truncation

OTHER MEANINGS

2. In computer programming, a function that discards the decimal part of a number and keeps the whole part.

The program calls the rounding-down function to turn 7.8 into 7.

3. A step in data processing where values are lowered to the nearest allowed unit.

The rounding-down function changed 12.6 seconds into 12 seconds.

4. A rule in measurement that always chooses the smaller marked value.

With the rounding-down function, a length of 3.2 cm is recorded as 3 cm.