[GRASS-dev] BLAS/LAPACK (Numerical Recipies in C)

[Hamish]

Sören Gebbert wrote:
> But the gmath lu solver is code from the numerical recipes,
> we have to rewrite this method.

re N.R. code in GRASS, 
  http://thread.gmane.org/gmane.comp.gis.grass.devel/18764/focus=18791

(this is just fyi, it is of course a good idea to remove the issue
altogether by removing any code based on N.R.)


On 2007-02-26, Stefano wrote:
> Note that previous GRASS development team (CERL) had
> an agreement with the authors of NR, to use freely NR:

[grass5/src.nonGPL/README]
 /* Based on "Numerical Recipies in C; The Art of Scientific Computing"
    (Cambridge University Press, 1988).  Copyright (C) 1986, 1988 by
    Numerical Recipes Software.  Permission is granted for unlimited
    use within GRASS only.  
    [...]
    Bill Press
  */
[sic]

If this agreement was with CERL I assume that means it predates GRASS
moving to the GPL. The GPL audit alluded to in grass5/TODO.txt and
grass5/src.nonGPL/ should have caught all known occurrences.


grass-5.4.0$ grep -rI "Numerical Recipes" * | cut -f1 -d: | uniq
TODO.txt
html/grass_commandlist.html
html/html/r.kineros.html
html/html/r.surf.random.html
html/html/r.tribs.html
src/raster/r.surf.gauss/main.c
src/raster/r.surf.gauss/README
src/raster/r.surf.gauss/source.txt
src/raster/r.surf.random/README
src/raster/r.surf.random/SOURCE.TXT
src.contrib/CERL/sites/s.surf.krig/NR.c
src.contrib/CERL/sites/s.surf.krig/nrutil.c
src.nonGPL/display/d.param.scale/CHANGES
src.nonGPL/README


A quick grep for "Numerical Recipes" in 6.3-cvs finds these references:
 raster/r.surf.random
 raster/r.surf.gauss

Although both modules' main.c ask:  /* still true ?*/


Hamish