/ 2 \ | x | lim |-------| x->0+| 4| \-1 + x /
Limit(x^2/(-1 + x^4), x, 0)
0
= 1.8305419236084e-29
/ 2 \ | x | lim |-------| x->0-| 4| \-1 + x /
1.8305419236084e-29