#### Previous topic

scipy.io.hb_read

#### Next topic

scipy.io.wavfile.read

# scipy.io.hb_write

`scipy.io.``hb_write`(file, m, hb_info=None)

  Write HB-format file.

  Parameters: | file : str-like or file-like if a string-like object, file is the name of the file to read. If a file-like object, the data are read from it. m : sparse-matrix the sparse matrix to write hb_info : HBInfo contains the meta-data for write
  Returns: | None

  Notes

  At the moment not the full Harwell-Boeing format is supported. Supported features are:

  > - assembled, non-symmetric, real matrices
  > - integer for pointer/indices
  > - exponential format for float values, and int format