Added TeXmath snippets to help with PAR 2

- (in-)line equation
- square root
- therefore
- cdot

.vimrc

@@ -62,6 +62,7 @@ map <S-Enter> O<ESC>
 
 let mapleader="\<Space>"
 nnoremap <leader>e o<ESC>
-nnoremap <leader>f :set foldmethod=marker<CR>
+nnoremap <leader>ff :set foldmethod=marker<CR>
+nnoremap <leader>f za
 nnoremap <leader>p :LLPStartPreview<CR>
 nnoremap <leader>s :set syn=sh<CR>

UltiSnips/texmath.snippets

@@ -1,6 +1,6 @@
 snippet al "Align (math)" b
 \begin{align*}
-	$0
+	$0 \\\\
 \end{align*}
 endsnippet
 
@@ -18,6 +18,30 @@ snippet int "Integral" i
 \int_{${1:lower}}^{${2:upper}} \, \mathrm{d}${3:x}	
 endsnippet
 
-snippet ie "In-line equation" i
+snippet ie "I-L equation" i
 $$1$ $2
 endsnippet
+
+snippet le "Lined equation" b
+$$$1$$
+endsnippet
+
+snippet sqrt "Square root" i
+\sqrt{$1}$2
+endsnippet
+
+snippet ex "cdot" i
+\cdot
+endsnippet
+
+snippet et "I-L var T" i
+$T$ 
+endsnippet
+
+snippet dlty "I-L Delta y" i
+$\Delta y$ 
+endsnippet
+
+snippet thus "Therefore" b
+$\therefore$ 
+endsnippet