Useful Links

For the purpose of writing without Microsoft's office solution or windows OS, I introduce some useful links for the writing of markdown, drawing solution as like VISIO, and others, here.

Markdown

I think the following link may be the best markdown editing page on Web. It supports full latex based markdown and beautiful preview of the markdown.

Online Upmath editor

LaTex

The Codecogs page is so famous so that I think it may not be necessary to introduce it here. However, when you forget an appropriate latex symbol for your math, I think, the codecog's online latex editor page is still effective to you.

Online Latex Editor on CodeCogs

Sometimes, when you should write a math on the Microsoft Word or the Powerpoint, the MathML code will help you. You can get an appropriate MathML code the following link.

Hostmath

When you don't have any information about a special math symbol in LaTeX, this site will help you.

detexify

Finally, I strongly suggest the alternative Powerpoint solution in the Libre office when you need a math in your drawing a diagram. This solution provides the LaTeX editor for the diagram.

Diagram (as like MS's VISIO)

If you don't want to install the Libre office even though you still need a beautiful diagram with a math, I suggest the following web-based drawing diagram solution.

Draw.io