INTEGRAL

noun

9 Scrabble

12 WWF

I 1

N 1

T 1

E 1

G 2

R 1

A 1

L 1

Definition

A number, the limit of the sums computed in a process in which the domain of a function is divided into small subsets and a possibly nominal value of the function on each subset is multiplied by the measure of that subset, all these products then being summed.

"The integral of x\mapsto x^2 on [0,1] is \frac{1}{3}."