What Does the 3 in the Integral Notation \int{d^3 r} Represent?

DanielFaraday · Mar 9, 2010

I saw this notation in a textbook but I'm a bit confused by it. What exactly does the 3 mean? Is it shorthand for a triple integral in spherical coordinates?

[tex]\int{d^3 r}[/tex]

Thanks in advance.

mathman · Mar 9, 2010

It means a triple integral, not necessarily in any particular coordinate system.

What Does the 3 in the Integral Notation \int{d^3 r} Represent?

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What Does the 3 in the Integral Notation \int{d^3 r} Represent?

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