# Incomplete elliptic integral of the 3rd kind Π(φ,n,k) Calculator

## Calculates the incomplete elliptic integral of the third kind Π(φ,n,k).

 $\Pi(\phi,n,k)={\large\int_{\small 0}^{\hspace{25}\phi}\frac{d\theta}{(1-nsin^2\theta)\sqrt{1-k^2sin^2\theta}}}$
 φ degree   -360≦φ≦360 radian    -2π≦φ≦2π n k -1≦k≦1
 6dgt10dgt14dgt18dgt22dgt26dgt30dgt34dgt38dgt42dgt46dgt50dgt
 ・ Π(x,n,k) can be used at x=sin(φ).$\normal Incomplete\ elliptic\ integral\\\hspace{100} of\ the\ 3rd\ kind\ \Pi(\phi,n,k)\\[10](1)\ \Pi(\phi,n,k)={\large\int_{\small 0}^{\hspace{25}\phi}\frac{d\theta}{(1-nsin^2\theta)\sqrt{1-k^2sin^2\theta}}}\\\hspace{80}={\large\int_{\small 0}^{\hspace{25}\small x}\frac{dt}{(1-nt^2)\sqrt{(1-t^2)(1-k^2t^2)}}}\\\hspace{230}x=sin\phi\\$

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