/ 2 /1\\ lim |x *sin|-|| x->oo\ \x//
Limit(x^2*sin(1/x), x, oo, dir='-')
/ 2 /1\\ lim |x *sin|-|| x->0+\ \x//
0
= 1.16485833972964e-21
/ 2 /1\\ lim |x *sin|-|| x->0-\ \x//
= -1.16485833972964e-21
oo
1.16485833972964e-21