technical document where in the people of the developer is useful. Dividing into Articles, References and Miscelaneous, it has explained. (Jap to Engrish)
In k-means clustering we are given a set of n data points in d-dimensional space and an integer k, and the problem is to determine a set of k points in d-space, called centers, so as to minimize the mean squared distance from each data point to its neares
"While MFC remains the library of choice for full application development, ATL provides an attractive alternative when a simple set of window wrapper classes is all that is needed." March 1999