For $\TeX$ and $\LaTeX$ fragments I use the =texfrag= package. This allows to insert math fragments inside documents.
Example:
$$e^{ix} = cos x + i sinx$$
For $\TeX$ and $\LaTeX$ fragments I use the =texfrag= package. This allows to insert math fragments inside documents.
Example:
$$e^{ix} = cos x + i sinx$$