Nephroid information

In geometry, a nephroid (from Ancient Greek ὁ νεφρός (ho nephros) 'kidney-shaped') is a specific plane curve. It is a type of epicycloid in which the smaller...

diagrams of the evolutes of the parabola, the ellipse, the cycloid and the nephroid.) For any arc of the evolute that does not include a cusp, the length of...

diameter of small circle . Epicycloid examples k = 1; a cardioid k = 2; a nephroid k = 3; a trefoiloid k = 4; a quatrefoiloid k = 2.1 = 21/10 k = 3.8 = 19/5...

(2-rose) Spiric sections Squircle Trifolium Curve Astroid Atriphtaloid Nephroid Quadrifolium Epicycloid Epispiral Epitrochoid Hypocycloid Lissajous curve...

trisectrix Ovals of Cassini Squircle Three-leaved clover Astroid Atriphtaloid Nephroid Quadrifolium Epicycloid Epispiral Epitrochoid Hypocycloid Lissajous curve...

making it an example of a hedgehog. Cardioid – an epicycloid with one cusp Nephroid – an epicycloid with two cusps Deltoid – a hypocycloid with three cusps...

at the bottom of a cylindrical cup is half of a nephroid, which looks quite similar. Limaçon Nephroid Deltoid Wittgenstein's rod Cardioid microphone Lemniscate...

Trifolium curve[citation needed] Quintic of l'Hospital Astroid Atriphtaloid Nephroid Quadrifolium Epicycloid Epispiral Epitrochoid Hypocycloid Lissajous curve...

fruit rather large, short-pedicellate, trigonous-globular ; seeds oblique-nephroid, but also somewhat triangular, smooth, outside whitish and faintly marked...

quadrilateral Roulettes Centered trochoid Epitrochoid Epicycloid Cardioid Nephroid Deferent and epicycle Hypotrochoid Hypocycloid Astroid Deltoid curve Topology...

Category:Curves lists numerous metaphorical names, such as Bean curves, also called Nephroids, from the Greek word for kidney "Bullet Nose". MathWorld. Wolfram. 2013-05-08...

Curves", put it well: "The other names such as astroids, scarabeans, nephroids, atriphtaloids probably represent so little to the mind as to be not worth...

r 2 − a 2 ) {\displaystyle p^{2}={\frac {9}{8}}(r^{2}-a^{2})} 2, −2⁄3 Nephroid p 2 = 4 3 ( r 2 − a 2 ) {\displaystyle p^{2}={\frac {4}{3}}(r^{2}-a^{2})}...