The Online LaTeX Equation editor by Code Cogs is very useful. Just type your equation in the box using the onscreen keyboard, and it will allow you to download a gif of your equation and html including the LaTeX code.

[2^n \geq n+2]

The Online LaTeX Equation editor by Code Cogs is very useful. Just type your equation in the box using the onscreen keyboard, and it will allow you to download a gif of your equation and html including the LaTeX code.

[2^n \geq n+2]