A limit determination of a function is not only one of the important things in
Calculus, but also essential tool in applied mathematics. Many times we have
to confront whether a function, say f(x), converges to a real constant, L, when
x is extremely large. If it does, we can write that limx→∞
f(x) = L, and call that
f has the limit L as x tend to infinity. However, if f(x) and g(x) are increased
without bound when x is very large, no one can guarantee that limx→∞
f(x)
g(x)
will
exist or not. Precisely, we call the limit in such this case that an indeterminate
form