number of rows
number of columns
number of stored (nonzero) entries.
array of stored (nonzero) entries of the matrix length: nnz
array of column indices of the stored (nonzero) entries of the matrix, length: nnz
array of indices into the colidx and values arrays, for each column, length: m + 1
This CSR matrix has the property that even rows with zero non-zero values have an entry in this array, if the i’th row has zero no values, then rowptr[j] == rowptr[j+1]. This property makes it easy to set values.
- unsigned m