Introduction - If you have any usage issues, please Google them yourself
If you often arranged with a mathematical formula article, then you are no stranger to WORD estimates, and its equation editor is also used a lot, you may find, WORD layout out of the paragraph is not so satisfactory, if left alignment, then the right side of each line varies, very beautiful and if the choice of both sides of the alignment, then the WORD in order to achieve this requirement, some may increase the spacing between words, so can not be achieved without the article format to our satisfaction. end of the line can automatically put a word in the syllable at the open, and add a hyphen it? TeX can