Trying to build the documentation currently fails:
$ makeinfo --html iterate.texinfo
iterate.texinfo:272: warning: @iftex should only appear at the beginning of a line (possibly involving @mathx)
iterate.texinfo:272: superfluous argument to @end ifnottex: , then loop will never be executed. If @var{n} is (possibly involving @mathx)
iterate.texinfo:274: warning: @iftex should only appear at the beginning of a line (possibly involving @mathx)
iterate.texinfo:274: superfluous argument to @end ifnottex: . (possibly involving @mathx)