May I ask how to add the original latex code

[zoushucai]

For example, sometimes I want to directly insert raw latex code into the rmd file to generate a PDF, but I don't know how to do it?
Not to display the latex code, but to compile and output the raw latex code

[cderv]

This is explain in the book already
https://bookdown.org/yihui/rmarkdown-cookbook/raw-latex.html

I believe this is what you are looking for. Please reopen if not

[zoushucai]

believe this is what you are looking for. Please reopen if not

Thank you. I know this, but later I realized that it turned out to be an issue with the visual mode of Rstduio

[cderv]

later I realized that it turned out to be an issue with the visual mode of Rstudio

For this issue you can open in the rstudio IDE repo then. Thanks !