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# scipy.sparse.extract

Functions to extract parts of sparse matrices

Functions

`find`(A) | Return the indices and values of the nonzero elements of a matrix
`tril`(A[, k, format]) | Return the lower triangular portion of a matrix in sparse format
`triu`(A[, k, format]) | Return the upper triangular portion of a matrix in sparse format

Classes

`coo_matrix`(arg1[, shape, dtype, copy]) | A sparse matrix in COOrdinate format.

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- SciPy v0.9 Reference Guide (DRAFT) »
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