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DescriptionNodoid.svg	English: Plot of the nodoid constant mean curvature surface, generated by rotating a nodary around the x-axis. Only the lower half of the surface is shown, in order to display the internal structure. Español: Gráfico del nodoide. Esta superficie tiene curvature media constante y es generado a partir de rotar una curva nodaria alrededor del eje x. Sólo se muestra la mitad inferor para ilustrar la estructura interna. Türkçe: Sabit ortalama eğri yüzeyinin grafiği. Nodary'nin x ekseni etrafında döndürülmesiyle oluşturulmuştur. İç yapısını belirtmek için, yüzeyin sadece alt yarısı gösterilmiştir.
Date	14 February 2016
Source	Own work
Author	Nicoguaro

The parameterization used was

x=a\left(1-\cos u+\int \limits _{0}^{u}{\frac {\sin ^{2}\alpha }{\sqrt {\sin ^{2}\alpha +\beta }}}d\alpha \right)

y=a(\sin u+{\sqrt {\sin ^{2}u+\beta }})\cos v

z=a(\sin u+{\sqrt {\sin ^{2}u+\beta }})\sin v

with $\beta =a^{2}/b^{2}$ where $a$ and $b$ are parameters. The mean curvature is $H=1/(2a)$ .

This file was created with Python,NumPy and Matplotlib.

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