Deltoid Radial Curve
DeltoidRadial
The radial curve of the deltoid
x = 1/3a[2cost+cos(2t)]
(1)
y = 1/3a[2sint-sin(2t)]
(2)
with radiant point (x_0,y_0) is the trifolium
x_r = x_0+4/3a[cost-cos(2t)]
(3)
y_r = y_0+4/3a[sint+sin(2t)].
(4)
See also
Deltoid, Radial Curve, TrifoliumExplore with Wolfram|Alpha
WolframAlpha
More things to try:
Cite this as:
Weisstein, Eric W. "Deltoid Radial Curve." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/DeltoidRadialCurve.html