User:Aprogressivist/Mathstuff

From Wikipedia, the free encyclopedia

Reminders:

\mathbf{a} \times \mathbf{b} = a b \sin \theta \ \mathbf{\hat{n}}
\mathbf{a} \cdot \mathbf{b} = |\mathbf{a}| \, |\mathbf{b}| \cos \theta \,