标签:constant geometry there shape radius Something FUN circle speed
Let $r_1$ and $r_2$ be the radius of two concenter circles with $r_1<r_2$.
Point $A$ is moving at constant speed on the circle with radius $r_2$, and point $B$ is moving at constant speed on the circle with radius $r_1$.
The midpoint of line $AB$ makes some interesting diagrams.
For example, if $r_2=2r_1$, the resulting shape is a cardioid.
If $r_2=3r_1$, there is something like Garfield’s eyes.
For $r_2=4r_1$, the shape is reminiscent of a nice clover.
When $r_2=6r_1$, there is a blooming Catharanthus roseus.
In general, for $r_2=kr_1$, the “flower” has $(k-1)$ “petals”.
标签:constant,geometry,there,shape,radius,Something,FUN,circle,speed 来源: https://www.cnblogs.com/hazel-wu/p/15029637.html
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