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# scipy.io.mmwrite

`scipy.io.``mmwrite`(target, a, comment='', field=None, precision=None)

  Writes the sparse or dense matrix A to a Matrix Market formatted file.

  Parameters : | target : file Matrix Market filename (extension .mtx) or open file object a : array like Sparse or full matrix comment : str comments to be prepended to the Matrix Market file field : {‘real’, ‘complex’, ‘pattern’, ‘integer’}, optional precision : : Number of digits to display for real or complex values.

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