I recently learned of a great online resource for helping me with LaTex syntax. The website is called Detexify. The main attraction is that it is so easy to use; you don’t need to sift through hundreds of pages of a manual to find your symbol. All you need to do is draw the symbol you’re interested in and the program lists some likely candidates for the syntax on the right hand side. I still use other references to figure out how to put accent marks on text characters and for formatting issues, but this is a great tool for learning how to tex math symbols.