square a flat shape with four sides of equal length and four angles of 90°

triangular prism A triangular prism is a three-sided prism; it is a polyhedron made of a triangular base, a translated copy, and 3 faces joining...

square pyramid a pyramid having a square base. If the apex is perpendicularly above the center of the square, it will have C4v symmetry...

superellipse a closed curve resembling the ellipse, retaining the geometric features of semi-major axis and semi-minor axis, and symmetry about them, but a different overall...

ellipse a curve in a plane surrounding two focal points such that the sum of the distances to the two focal points is constant for...

deltoid curve a hypocycloid of three cusps. In other words, it is the roulette created by a point on the circumference of a circle as...