(adsbygoogle = window.adsbygoogle || []).push({}); Notation question - R^m ---> r^n

I've come across this notation a lot lately. I'm not sure what it really means.

[itex]R^{m} \rightarrow R^{n}[/itex]

I can't find the place in my book where it explains it.

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# Notation question - R^m -> r^n

**Physics Forums | Science Articles, Homework Help, Discussion**