Celeb Glow
news | April 11, 2026

Equation for a heart

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I’m trying to determine the equation for a heart starting from the unit circle. I figured a way to do it is to go from progressively closer shapes. What is the equation for shapes A-D? The very first equation I started from was the bottom half of the unit circle, which is $y=-\sqrt{1-x^2}$, however I didn’t know how to proceed from there to derive the following shapes.

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