; Demo of infinite limits.
; It finds the limits for a and c, but fails on b.

a = LIMIT(x SIN(1/x),x,1,INF)
b = LIMIT(LN(x)/x,x,1,INF)
f(x) := (x^3 + x^2 LN(x))/(x (20 - 3x^2))
c = LIMIT(f(x),x,10,INF)
; Omit the dummy x variable
SHOW a, b, c