Hello from $\MicroTeX$, welcome 🥰! $\MicroTeX$ is a fast, cross-platform and embeddable $\LaTeX$ (part of) rendering library.

It supports complex math formula layout and rendering, for example, the Fourier transform: $F(\omega)=\int_{-\infty}^{+\infty}f(t)e^{-i\omega_nt}dt$

And inline formula, for example, for quadratic equation: $ax^2+bx+c=0$, as we know: $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$.

And inter-line formula, for example, the Maxwell equation:
$$\text{Maxwell equations:}\left\{
\begin{array}{ll}
  \Nabla\cdot\mathbf{E}=0 & \Nabla\times\mathbf{E}=-\frac{\partial\mathbf{B}}{\partial t},\\
  \Nabla\cdot\mathbf{B}=0 & \Nabla\times\mathbf{B}=\mu_0\varepsilon_0\frac{\partial\mathbf{E}}{\partial t}.
\end{array}
\right.$$

And fancy emojis:
$$F(x) = \displaystyle\int_🙂^😀f(x)dx\\
\log_😄️😅️=💧️\\
\displaystyle\sum_{i=0}^\infty💰️=🤣️\\
\prod_{i=0}^\infty i\times💰️=😭️\\
%ZWJ
\char"1f468+\char"1f469+\char"1f466=👨‍👩‍👦
$$

Finally:
$$\shadowbox{\text{Have fun 🥰!}}$$