Instead of making #operator#precedence#programming#language#parentheses#MetaLang

generally accepted rules. It is better imo to use parenthesis to be sure, they cost close to nothing and clear up all ambiguity.

This is better, because operator precedence is kind of arbitrary anyway. It is just another agreement on how this will be computed so you can talk about the same amounts/results. Most old school calculators used the output from previous action as input for the next and so disregarding the