[R] Power functions?

rkevinburton at charter.net rkevinburton at charter.net
Sat Jan 3 21:32:41 CET 2009


I had a question about the basic power functions in R.

For example from the R console I enter:

-1 ^ 2
[1] -1

but also

-1^3
[1] -1

-0.1^2
[1]  -0.01

Normally pow(-1, 2) return either -Infinity or NaN. Has R taken over the math functions? If so I would think that -1^2 is 1 not -1 and -0.1^2 is 0.01 not -0.01.

Thank you.

Kevin




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