By means of the part intersection,the generalized support function and the restricted chord function and the combination with the simple maths and the related theory of measure,the individual expressions for the kinematic measure of ellipse and its properties have been derived.

Ren Delin introduced the notion of generalized support function and restricted chord function of a convex body in the plane and used them to establish integral formulas for the containment measure of a line segment inside a convex body.

In this paper, the author discusses the limit function of {fn} in a connected component of F(f).

Some properties of the limit function of the iterated exponentials sequence are presented.

The differentiability of limit function of functional sequence is studied;a stronger condition is improved that ordinary derivative functional sequence is uniform convergence;a sufficient condition of the differentiability of a limit function is obtained,and its applying range is expanded.

Functional Limit of its Composite Calculation and Variable Substitute Formula;

Heine theorem to proving the four fundamental rules of functional limit and both sides grip theorem of functional limit and introduces a new method for testifying to the four fundamental rules of functional limit and the both sides grip theorem of functional limit.

Solution of definite integral and sum function limit;

The computation of function limit is essentially required in higher mathematics education.