# Help talk:Fractions and functions

I am currently using \text{} in math markup to prevent dashes from being displayed as minuses. Should I wrap just the dash or the whole physcial unit in the markup? Is there a guideline if physical units should be straight or cursive in formulas? On this page I made the physcial units straight Page:Text-book_of_Electrochemistry.djvu/28 whereas functions such as 'cos' should be displayed cursive? --Tobias1984 (talk) 17:59, 16 December 2015 (UTC)