Without parentheses around the sum, if someone tries multiplying or dividing, by anything other than unity, an erroneous result will ensue (divide by zero notwithstanding).? Attached is a diff file with the corrections to the other macros, which are not that many.? Hopefully, these changes won't break anything ;)
Also, is there a better way to submit changes, like a github project page, to make submitting and merging changes easier?
jjpurdum