pointfunction
nounUK /ˈpɔɪntˌfʌŋkʃən/
US /ˈpɔɪntˌfʌŋkʃən/
A pointfunction is a math rule that gives one answer for each point you put in.
The teacher explained that a pointfunction turns each input point into exactly one output value.
OTHER MEANINGS
2. In geometry, a rule that assigns a value to every point in a space.
The temperature at each spot on the map is a pointfunction of location.
3. A mathematical relation where every point has only one result.
Because each x-value gives one y-value, the curve is a pointfunction.
4. A function defined on points rather than on whole numbers.
Physicists often study a pointfunction that describes pressure at each point in a fluid.