[GRASS-user] Vector attribute 'algebra' - calculating difference between areas of polygons

[Vaclav Petras]

On Wed, May 17, 2017 at 11:32 AM, James Duffy <james.philip.duffy at gmail.com>
wrote:

> Is there some sort of vector algebra available in GRASS.



Speaking just about the vector algebra, some basic experimental
functionality is available in an experimental addon module v.mapcalc.

https://grass.osgeo.org/grass72/manuals/addons/v.mapcalc.html
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