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I am assuming that you are talking about polar graphs. A limacon is a polar graph that has a heart shape. How much it looks like a heart depends on the type of limacon. There are looped, dimpled and convex. The equation of a limacon is r = b + a cos(theta) or r = b + a sin (theta). Theta is just the Greek letter theta that is the typical variable for an unknown angle.

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14y ago

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