Indeterminate form

An indeterminate form is an expression in calculus obtained from calculating the limit of a function, and whose numerical value is not able to be determined. However, the limit of such a function can often be determined using a technique such as L'Hôpital's Rule.

Basic indeterminate forms for limits:

${0 \over 0}\qquad {\infty \over \infty }$

Other indeterminate forms for limits, that can usually be simplified into the basic forms when the original problem is manipulated:

${\infty ^{0}\qquad 1^{\infty }\qquad 0\cdot \infty \qquad 0^{0}\qquad \infty -\infty \qquad }$