Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a simple question on precedence of operators, especially applying a function and an index.

Can we write $q(F)_i$ (without an additional pair of parentheses) for $(q(F))_i$?

Maybe, it would be better $q(F)(i)$?

What is the best way to denote this?

share|cite|improve this question
is there any other way to understand $q(F)_i$? I can't think of any, and my personal taste is as little parentheses as possible. – yohBS Mar 20 '12 at 21:27
The first time you use this notation you may want to explicitly describe what you mean. Some readers may not find it obvious. – Jay Mar 20 '12 at 23:12
Is this something for which $q_i(F)$ is inappropriate? Unless there is a fear of misinterpreting for components or partials, that's my preference. Then $q(F)_i$. – mixedmath Mar 20 '12 at 23:30

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.