This is an inline math expression: $E=mc^2$
This is a display math expression: $$\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}$$
This is an inline math expression: $E=mc^2$
This is a display math expression: $$\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}$$