This example shows how to write in Thai in LaTeX using the thailatex package. It uses UTF-8 encoding so you can type Thai characters directly in the LaTeX source code.
It also shows how to mix Thai with English using the babel package.
This example shows how you can use Asymptote on writeLaTeX. Asymptote is a powerful vector graphics language for technical drawings. Labels and equations are typeset with LaTeX, for high-quality output.