An annotated example of an input file for testing the banded singular value decomposition routines is shown below.

SBB: Data file for testing banded Singular Value Decomposition routines 20 Number of values of M 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 10 10 16 16 Values of M 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 10 16 10 16 Values of N 5 Number of values of K 0 1 2 3 16 Values of K (band width) 2 Number of values of NRHS 1 2 Values of NRHS 20.0 Threshold value F Put T to test the error exits 1 Code to interpret the seed SBB 15

The first line of the input file
must contain the characters `SBB` in columns 1-3.
Lines 2-12 are read using list-directed input and specify the following
values:

line 2: | The number of values of M and N |

line 3: | The values of M, the matrix row dimension |

line 4: | The values of N, the matrix column dimension |

line 5: | The number of values of K |

line 6: | The values of K, the bandwidth |

line 7: | The number of values of NRHS |

line 8: | The values of NRHS, the number of right hand sides |

line 9: | The threshold value for the test ratios |

line 10: | TSTERR, the flag to test error exits |

line 11: | An integer code to interpret the random number seed. |

= 0: Set the seed to a default value before each run | |

= 1: Initialize the seed to a default value only before the first run | |

= 2: Like 1, but use the seed values on the next line | |

line 12: | If line 14 was 2, four integer values for the random number seed |

The remaining lines are used to specify the matrix types for the
set of tests.
The valid 3-character code is `SBB` (`CBB`
in complex, `DBB` in double precision, and `ZBB` in complex*16).