Add mod(x,y) function to r.mapcalc and r3.mapcalc doc

[agiudiceandrea]

No description provided.

[ninsbl]

Thanks for your contribution, @agiudiceandrea !
Others: should this be backported?

[agiudiceandrea]

@ninsbl may it be also useful to add the "mod" function also to the wx mcalc_builder module?

[ninsbl]

@ninsbl may it be also useful to add the "mod" function also to the wx mcalc_builder module?

Makes sense to me. Maybe it anyway just was forgotten due to the lack of documentation...

[veroandreo]

Thanks for your contribution, @agiudiceandrea !
Others: should this be backported?

I believe so. It's not a new feature per se... it was already there but not documented, is that right?

[agiudiceandrea]

It's not a new feature per se... it was already there but not documented, is that right?

Yes, it is.

[mlennert]

What is the difference between the mod(x,y) function and x%y ?

[agiudiceandrea]

What is the difference between the mod(x,y) function and x%y ?

They ere the same arithmetic operation, like x^y and pow(x,y).

[ninsbl]

Trying to trigger re-run of the stuck flake8 check by closing and reopening the PR as suggested here:
https://stackoverflow.com/questions/52408592/how-to-relaunch-github-check-without-pushing-new-commits/52412240 , so this can be merged

[ninsbl]

Backported in 0adac7f