![]() In most cases, operations on mixtures of sparse and full matrices return full matrices. Operations on sparse matrices return sparse matrices and operations on full matrices return full matrices. This generates the ultimate sparse matrix, an m-by- n all zero matrix.Īll of the MATLAB built-in arithmetic, logical, and indexing operations can be applied to sparse matrices, or to mixtures of sparse and full matrices. The maxima are computed before any zeros in s are removed, so one of the rows of might be. To simplify this six-argument call, you can pass scalars for the argument s and one of the arguments i or j-in which case they are expanded so that i, j, and s all have the same length. ![]() If any value in i or j is larger than the maximum integer size, 2^31-1, then the sparse matrix cannot be constructed. Any elements of s that have duplicate values of i and j are added together. Any elements of s that are zero are ignored, along with the corresponding values of i and j. Vectors i, j, and s are all the same length. Uses vectors i, j, and s to generate an m-by- n sparse matrix such that S(i(k),j(k)) = s(k), with space allocated for nzmax nonzeros. ![]() If S is already sparse, sparse(S) returns S. The sparse function generates matrices in the MATLAB sparse storage organization.Ĭonverts a full matrix to sparse form by squeezing out any zero elements. Sparse (MATLAB Functions) MATLAB Function Reference
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