>? varCash >Whether or not to use m. is not a rule but a personal preference.
>correctness and formal precision
>
I've got trouble with this as there are quite a few arbitrary rules when to use or not to use m. Those who apply m. themselves have different rules where and when to apply them as wel. Some say it is not neccesary at a variable assignment while other say you must be consistent and apply them where you can. It does not make sense to me. I just don't use them unless neccesary for whatever reason.