[Proj] trying to understand results of reprojecting from epsg 4326 to epsg 31370

[Jean-Claude REPETTO]

OvV_HN wrote :
> (a) The scaling factor I used is ds=1.2747, since usually one gives the 
> difference with 1.0 in units of 1e-6. The value you stated was: scale 
> 1.0000012747

I think the scale factor must be inverted.