definiteintegral

definite integral n.

1. An integral that is calculated between two specified limits, usually expressed in the form ∫^b/_a ƒ(x)dx. The result of performing the integral is a number that represents the area under the curve of ƒ(x) between the limits and the x-axis if f(x) is greater than or equal to zero between the limits.

2. The result of an integration performed on a fixed interval.

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