0/0=undefined
lim n0 n/n=1
lim x0 x/x=1
lim n0 -n/-n=-1
lim x0 -x/-x=-1
lim n0 0/n=0
lim n0 n/0=limit doesn't exist in the real line
lim x0 lim n0 n/x=0
lim x0 lim n0 x/n=indeterminate
lim n0 lim x0 x/n=0
lim n0 lim x0 n/x=indeterminate
why the fuck is this so? is worfram just fucked?