(adsbygoogle = window.adsbygoogle || []).push({}); Can someone explain to me what a "function arrow" is?

In particular, what this may mean:

I = [a, b]

f : I --> R

I'm just trying to understand what the arrow means.

Or if we have R --> R what that would mean.

Thank you!

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# Homework Help: Can someone explain to me what a function arrow is?

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