p.258. Example 1: Bad numbering of list. Should be 1) and 2).
p.264. "Scalable brackets can also be unpaired." This reads strangely
because the "also" suggests that normal and scalable unpaired brackets
can be treated in the same way when in fact they can't. It should read
"With scalable brackets, you do not need a backslash."
p.265. "Space markup...are" should be "Space markup...is"
p.269.In note: "Warning: this modify only current formula..." should be
"modifies only the current formula".
p.270 "...the one the more inside..." should be "...the one further
inside..."