Possible Duplicate:
How to look up a math symbol?
How can I put a dash across the letter d? Not through the middle but only through the top vertical line bit. It's like the \hbar used in physics but with a d.
Possible Duplicate:
How to look up a math symbol?
How can I put a dash across the letter d? Not through the middle but only through the top vertical line bit. It's like the \hbar used in physics but with a d.
What you are looking for is:
\dj

For this you need to load the fontenc package
\usepackage[T1]{fontenc}
When looking for a symbol, remember using Detextify, which is a beautiful tool, created just for this purpose, or check the The Comprehensive LaTeX Symbol List.