(x2 + y2 - 2ax)2 = 4a2(x2 + y2).
Like all the epicycloids it is interesting from the point of view of gears. It is a special case of the limaçon of Pascal.
Car"di*oid (?), n. [Gr. () heart-sheped; herat + shape.] Math.
An algebraic curve, so called from its resemblance to a heart.
© Webster 1913.
Log in or register to write something here or to contact authors.
Lost password
Sign Up
Need help? accounthelp@everything2.com