0

When using an abbreviation or acronym that has a mix of lowercase and capital letters, such as mmWave or dBm, in a heading or line that is formatted in all caps, is it appropriate to use all caps - or should you leave the mixed caps?

4
  • 1n what medium? If online, what software are you using? What style guide are you following, that mandates capitals? I suggest using caps and small caps. Provided that you have small caps available and may use them.
    – Rosie F
    Feb 21, 2021 at 8:30
  • 3
    dB·m is a symbol, not an abbreviation, and in that distinction lies your answer. (Dot or space symbol strings. NIST 811
    – Phil Sweet
    Feb 21, 2021 at 12:53
  • See also NIST 811 7.8, which would likely apply to headings.
    – Phil Sweet
    Feb 21, 2021 at 12:58
  • I agree with the answers regarding symbols for SI units and such, but with stylised mixed-case or lower-case brand names, band names, etc, it's different, and common to put them into another, more normal form. (See e.g. this discussion)
    – Stuart F
    Nov 18, 2021 at 23:28

2 Answers 2

0

I would tend to use mixed cases especially if the abbreviation or acronym had a special meaning. Decibel is written as dBa. Reading that I immediately know you are speaking of sound however changing the case can often distort or confuse the reader.

0

is it appropriate to use all caps - or should you leave the mixed caps?

Leave the mixed capitals!

From the IEEE website APPENDIX VII Recommended Unit Symbols, SI Prefixes, and Abbreviations:

M = mega, e.g. 20MW = twenty million Watts,

whereas

m = milli e.g. 20mW = twenty milliwatts = 0.02 Watts

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.