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Integrals.

Definition: An integral of a function "F" is the area under the "curve" between specific intervals. It means in the graphic of the function we select an interval, from point a to point b and the area mark by the function, the lines perpendiculars to the axis on the a and b point and the axis itself. It notation for analysis is a symbol like a S, with the intervals in it is extreme followed by the function and next the variable again the integral is used. Example.

Description: - It describes the area under the function on __a__ selected intervals. - If we have a function on n dimensions the integral of that function will be of n+1 dimensions. - There are some functions Which integrals are direct, by example: 1/x, X^n, etc. There are called "Table integrals"

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