Adjustment network without measurement on references points

Hello,

How does it work ?

It doesn't work. It is a numerical issue due to the 64bit limit of a double value. In Matlab, for instance, you get the following warning:

Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND =  9.628486e-18.

However, Matlab is (also) able to invert the normal equation matrix. Like Matlab, JAG3D uses LAPACK for matrix operations. Thus, the obtained results are not serious...

regards
Micha

--
applied-geodesy.org - OpenSource Least-Squares Adjustment Software for Geodetic Sciences

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2 distincts stations in one adjustement Antoine Chabert, 2020-11-18, 12:30
- 2 distincts stations in one adjustement Antoine Chabert, 2020-11-18, 12:35
- 2 distincts stations in one adjustement Micha, 2020-11-18, 02:14
  - 2 distincts stations in one adjustement Antoine Chabert, 2020-11-19, 03:25
    - 2 distincts stations in one adjustement Micha, 2020-11-19, 06:49
      - 2 distincts stations in one adjustement Antoine Chabert, 2020-11-20, 04:03
        
        2 distincts stations in one adjustement Micha, 2020-11-20, 06:02
        
        2 distincts stations in one adjustement Antoine Chabert, 2020-11-23, 02:18
        
        2 distincts stations in one adjustement Micha, 2020-11-23, 03:57
        
        2 distincts stations in one adjustement Antoine Chabert, 2020-11-23, 05:48
        
        2 distincts stations in one adjustement Micha, 2020-11-24, 07:35
- Adjustment network without measurement on references points Antoine Chabert, 2020-12-18, 03:10
  - Adjustment network without measurement on references points Micha, 2020-12-18, 03:57