/ 2\ lim log\-4 + x / x->oo
Limit(log(-4 + x^2), x, oo, dir='-')
/ 2\ lim log\-4 + x / x->2+
-oo
= -7.45701700556794
/ 2\ lim log\-4 + x / x->2-
= (-7.48347839038604 + 3.14159265358979j)
oo
-7.45701700556794