Put a vector error over "output" in a figure.

diff --git a/Chapters/Introduction.tex b/Chapters/Introduction.tex
index b5e2e2436404d5f591e4c4c65cdaa6ddddf49b77..595a07485b195b7052e74db5625a8804da9ec5cf 100644 (file)
--- a/Chapters/Introduction.tex
+++ b/Chapters/Introduction.tex
@@ -88,7 +88,7 @@ sum' (x:xs) acc = acc' : (sum' xs acc')
     for i=1 upto num:
       newCircle.a[i](btex + etex);
     endfor 
-    newCircle.out(btex $output$ etex) "framed(false)";
+    newCircle.out(btex $\overrightarrow{output}$ etex) "framed(false)";
 
     % Center the input and output ports vertically, and put them left and right
     % resp.