Elliptic integrals with mfun

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Avi
Avi il 16 Apr 2014
Commentato: the cyclist il 16 Apr 2014
I get a different value when calculating ellipticE directly and with mfun:
>> mfun('EllipticE',0.5)-ellipticE(0.5)
gives: 0.1168.
What am I missing?
I'm using Matlab 8.2.0.701 (R2013b).
Avi
  2 Commenti
Avi
Avi il 16 Apr 2014
After some more digging I found out that these two functions take slightly different inputs. ellipticE() assumes the input is square, so the following will be zero:
mfun('EllipticE',0.5)-ellipticE(0.5^2)
Case closed!
the cyclist
the cyclist il 16 Apr 2014
I suggest you create an answer here instead of a comment, accept that answer, and delete the comment.

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