Công thức toán LaTeX cho Comment FB is a Chrome extension developed by Tran Trieu Phu. It falls under the category of Browsers and is classified as an Add-ons & Tools subcategory. This free extension allows users to write mathematical formulas in the comments section of Facebook posts on the website thuvienvatly.com.

The extension provides a detailed guide on how to input mathematical formulas using LaTeX code. Users can write formulas inline by enclosing them in a single dollar sign ($), or on a separate line by enclosing them in double dollar signs ($$). It is important to note that there should be a space between the formula and the enclosing dollar signs.

To use the extension, users simply need to install it and look for the exponent symbol in the top-right corner of the Chrome browser. Clicking on this symbol opens a LaTeX editor where users can compose their formulas. After composing the formula, users can copy the generated code and paste it into the comment box on Facebook, between the appropriate dollar signs.

After refreshing the page, users will be able to see the mathematical formula displayed in the comment section. Công thức toán LaTeX cho Comment FB is a useful tool for those who want to include mathematical expressions in their Facebook comments.