@item @option{-F <fontname>} @tab The font face and size
@item @option{-t <text>} @tab The text
@item @option{-f <filename>} @tab The filename to read text from
-@item @option{-x <expresion>} @tab x coordinate of text or image
-@item @option{-y <expresion>} @tab y coordinate of text or image
+@item @option{-x <expression>}@tab x coordinate of text or image
+@item @option{-y <expression>}@tab y coordinate of text or image
@item @option{-i <filename>} @tab The filename to read a image from
@end multitable
-Expresions are functions of these variables:
+Expressions are functions of these variables:
@multitable @columnfractions .2 .8
@item @var{N} @tab frame number (starting at zero)
@item @var{H} @tab frame height
* -F <fontname> The font face and size
* -t <text> The text
* -f <filename> The filename to read text from
- * -x <expresion> X coordinate of text or image
- * -y <expresion> Y coordinate of text or image
+ * -x <expression> X coordinate of text or image
+ * -y <expression> Y coordinate of text or image
* -i <filename> The filename to read a image from
*
- * Expresions are functions of:
+ * Expressions are functions of:
* N // frame number (starting at zero)
* H // frame height
* W // frame width