/3\ lim sin|-| x->oo \x/
Limit(sin(3/x), x, oo, dir='-')
0
/3\ lim sin|-| x->0+ \x/
<-1, 1>
= 0.573406568644281
/3\ lim sin|-| x->0- \x/
= -0.573406568644281
0.573406568644281