This is a math test.
$$\mathcal{F}(x)=\mathcal{H}(x)-x$$
$$E=mc^2$$
$$\lim_{n\rightarrow \infty}(1+2^n+3^n)^\frac{1}{x+\sin n}$$
This is a math test.
$$\mathcal{F}(x)=\mathcal{H}(x)-x$$
$$E=mc^2$$
$$\lim_{n\rightarrow \infty}(1+2^n+3^n)^\frac{1}{x+\sin n}$$