How can the arithmetic-geometric mean be derived using Elliptic Integration?

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The arithmetic-geometric mean (AGM) can be derived using elliptic integration, as established by Carl Friedrich Gauss. The iterative process involves defining two sequences: A1 = a, B1 = b, An+1 = (An + Bn) / 2, and Bn+1 = (An * Bn)^(1/2). This method converges to the AGM of the two initial values. For further details, refer to the Wikipedia page on the arithmetic-geometric mean.

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yanshu
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hello every,how to get the arithmetic-geometric mean? sorry,i can't find it in other place.and my english is poor. arithmetic-geometric mean is: the limit of An,A1=a,B1=b,A(n+1)=(An+Bn)/2,B(n+1)=(AnBn)^1/2 GAUSS got it. a form of Elliptic Integration. Thanks~:biggrin:
 
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