<div>Is the matrix which is to be solved symmetric ? I got this impression that matrix is symmetric from the code of function IL_matrix_create.</div><div><br></div><div>I did not understand how it is symmetric. Please clarify this.</div>
<div><br></div><div><br></div><div><br></div>> On Mon, Mar 15, 2010 at 8:31 PM, Helena Mitasova <<a href="mailto:hmitaso@unity.ncsu.edu">hmitaso@unity.ncsu.edu</a>> wrote:<div><br>> Do the system of linear equations first - it should help on several levels<br>
> because it will also make it possible to run the interpolation with fewer larger segments<br>> and larger neighborhood reducing the instances when segments may be visible<br>> in the resulting grid.<br>><br>
> Computing grid may be time consuming for certain values of tension - I would have to look at it.<br>> Checking the interpolating function at given points should be made optional - it depends on how<br>> many points there are - it could take as much time as computing the grid.<br>
><br>> Finding points should not take too much time unless the spatial distribution of points<br>> is very heterogeneous, but I would have to look at it.<br>><br>> you can write me off-this list (maybe cc to GRASS dev list) as SoC list is mostly<br>
> to organize GSoC (at least that is how I understand its purpose),<br>><br>> Helena<br>><br>><br>> Helena Mitasova<br>> Associate Professor<br>> Department of Marine, Earth and Atmospheric Sciences<br>
> North Carolina State University<br>> Raleigh, NC 27695<br>> <a href="mailto:hmitaso@unity.ncsu.edu">hmitaso@unity.ncsu.edu</a></div>