IPROB |
problem option |

1 | elliptic boundary value problem |

2 | obstacle problem |

3 | continuation problem |

4 | parameter identification problem |

5 | optimal control problem |

-1 | DD solve for elliptic boundary value problem |

-2 | DD solve for obstacle problem |

-3 | DD solve for continuation problem |

-4 | DD solve for parameter identification problem |

-5 | DD solve for optimal control problem |

ITASK |
IPROB |
option |

0 | 1 | default |

0 | 2 | default |

0 | 3 | continue to the nearest target point |

1 | continue to the nearest target or singular point | |

2 | switch branches at a bifurcation point | |

3 | switch and/or ; initialize with fixed | |

4 | switch and/or ; initialize with fixed | |

5 | solve with , ( fixed) | |

6 | solve with , ( fixed) | |

7 | solve with , | |

0 | 4 | default |

8 | switch and initialize | |

0 | 5 | default |

ISPD |
storage/iteration options |

0 | nonsymmetric/biconjugate gradient |

1 | symmetric/conjugate gradient |