integerpartfunction
nounUK /ˈɪn.tɪ.dʒər pɑːt ˈfʌŋk.ʃən/
US /ˈɪn.tə.dʒɚ pɑːrt ˈfʌŋk.ʃən/
A math rule that keeps only the whole number part and throws away the decimal part.
The integer part function turns 3.7 into 3.
OTHER MEANINGS
2. A function that maps a real number to the largest integer less than or equal to it.
For x = -2.3, the integer part function gives -3.
3. In some programming contexts, a function that removes the fractional digits of a number.
The integer part function of 9.99 returns 9 in many languages.
4. A step function whose value stays constant between consecutive integers.
The graph of the integer part function looks like a staircase.