As an example, we'll write a function that takes two points, the center of the circle and a point on the perimeter, and computes the area of the circle.

The main function of rural long distance education system is knowledge and information dissemination and the Agriculture Service Center is mainly for problem solving in local area.

The comprehensive function design of multiple formats, forming a new city, Texas northwest active space center, promote the urban area of the class and grade of regional value.