How can I output the right micro symbol (not the greek character mu) in R?

The labels of my figures contain units like micromol m^-2 s^-1,so how can I output the right micro symbol?

I know that many people use the greek character mu, but mu is not the right symbol.

Thanks!

https://stackoverflow.com/questions/66927235/how-can-i-output-the-right-micro-symbol-not-the-greek-character-mu-in-r April 03, 2021 at 10:35AM