# Today I Learned

## Area Enclosed by a Line

Area enclosed by a line is given by

\[\vec S = \frac{1}{2}\int \vec x \times \vec{d l}.\]*Stop using stupid expressions.*

Science, Fiction and Me

Area enclosed by a line is given by

\[\vec S = \frac{1}{2}\int \vec x \times \vec{d l}.\]*Stop using stupid expressions.*