稀疏矩阵(SparseMatrix)：是矩阵中的一种特殊情况，其非零元素的个数远小于零元素的个数。

设m行n列的矩阵含t个非零元素.以二维数组表示高阶的稀疏矩阵时，会产生零值元素占的空间很大且进行了很多和零值的运算的问题。

-sparse matrix (SparseMatrix) : Matrix is a special situation. its non-zero elements of the number far less than the number of zero elements. Let m n trip out of the matrix containing t nonzero elements. A two-dimensional array of high-ranking sparse matrix, have zero value for elements of the space and a great many and zero computational problems.