If you use WORD2007 and later, you can use its own formula editor. It is suggested that you use Mathtype in word editing documents, which can be used as an add-in for Word 2003-2007. Mathtype 6.5 can also support word20 10 through simple operations.

If the topic is chemistry, you can download the chemical gold platoon for use. There are many macro packages on it. Enter the structural formula directly, and the operation is similar to word.

It is best to use TEX (LATEX or CTEX) when writing a paper, so that the mathematical formula is beautiful and neat. When the mathtype input formula is side by side with the text mentioned above, the line spacing must be adjusted to a fixed line spacing.