Examples Basic Algebra $$1 + 2 = 3$$ $$1 = 3 - 2$$ $$\begin{aligned} 1 + 2 &= 3\\ 1 &= 3 - 2 \end{aligned}$$ Function $$\begin{align*} f(x) &= x^2\\ g(x) &= \frac{1}{x}\\ F(x) &= \int^a_b \frac{1}{3}x^3 \end{align*}$$ $$\frac{1}{\sqrt{x}}$$ Matrices ::: matrix 1 & 0 0 & 1 ::: ()