descending function

noun

UK /dɪˈsendɪŋ ˈfʌŋkʃən/

US /dɪˈsendɪŋ ˈfʌŋkʃən/

A descending function is a math rule where the answer gets smaller as the number you put in gets bigger.

In the descending function, putting in 2 gives 10 and putting in 5 gives 4.

SYNONYMS

decreasing function monotonically decreasing function downward function falling function

RELATED WORDS

slope graph monotonic derivative inequality

OTHER MEANINGS

2. A function whose value never increases as its input increases.

The sequence is a descending function because each term is less than or equal to the one before.

3. In computer science, a sort order that arranges items from largest to smallest.

We sorted the scores using a descending function so the highest score came first.

4. A mathematical mapping that reverses the usual order of numbers.

The descending function maps larger inputs to smaller outputs.