--- a/doc/interpreter/plot.txi	Tue Jan 20 09:55:41 2015 -0500
+++ b/doc/interpreter/plot.txi	Tue Jan 20 10:24:46 2015 -0500
@@ -879,7 +879,7 @@
 && $\backslash$leftrightarrow && $\leftrightarrow$
 && $\backslash$uparrow        && $\uparrow$         &\cr
 & $\backslash$downarrow       && $\downarrow$
-&&   && 
+&&   &&
 &&   &&       &\cr}
 \vskip12pt
 \symtable{Openings and Closings} {#}
@@ -892,7 +892,7 @@
 \vskip12pt
 \symtable{Alternate Names} {#}
 {& \hbox to \cola{$\backslash$neq}   && $\neq$
-&& \hbox to \colb{}   && 
+&& \hbox to \colb{}   &&
 && \hbox to \colc{}   &&   &\cr}
 \vskip12pt
 \symtable{Other (not in Appendix F Tables)} {#}
@@ -900,7 +900,7 @@
 && \hbox to \colb{$\backslash$0}         && $\oslash$
 && \hbox to \colc{$\backslash$copyright} && $\copyright$      &\cr
 & $\backslash$deg        && $^\circ$
-&&    &&  
+&&    &&
 &&    &&       &\cr}
 \vskip12pt
 \hskip36pt Table 15.1: Available special characters in \TeX\ mode (cont.)