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Package ellipse (in ellipse.i) -
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DOCUMENT EllipticE(k) return E(k), the complete Elliptic Function integral from 0 to pi/2 of sqrt(1-k^2 *(sin(x))^2) dx k must lie in -1<= k <=1 Uses the arithmetic/geometric mean method. (Abramowitz & Stegun p598)
SEE ALSO: EllipticK
DOCUMENT EllipticK(k) return E(k), the complete Elliptic Function integral from 0 to pi/2 of 1/sqrt(1-k^2 *(sin(x))^2) dx uses the arithmetic/geometric mean method. (Abramowitz & Stegun p598) k must lie in -1 < k <1. E(k) diverges as log(4/sqrt(1-k^2)) as k->1
SEE ALSO: EllipticE