*(This section is optional. Later sections do not depend on this material.)*

Determinants are a fount of interesting and amusing formulas. Here is one that is often seen in calculus classes and used to compute determinants by hand.

*(This section is optional. Later sections do not depend on this material.)*

Determinants are a fount of interesting and amusing formulas. Here is one that is often seen in calculus classes and used to compute determinants by hand.