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The limaçon is a polar curve of the form r=b+acostheta (1) also called the limaçon of Pascal. It was first investigated by Dürer, who gave a method for drawing it in ...

A set considered together with the sigma-algebra on the set.

In the American system, 10^(57).

A bicupola in which the bases are in the same orientation.

Orthogonal contravariant and covariant satisfy g_(ik)g^(ij)=delta_k^j, where delta_j^k is the Kronecker delta.

Circumscribe a triangle about a circle, another circle around the triangle, a square outside the circle, another circle outside the square, and so on. The circumradius and ...

A plane figure for which quadrature is possible is said to be quadrable.

The point with respect to which a radial curve is computed.

The type of homology which results when the spaces being studied are restricted to simplicial complexes and subcomplexes.

An object which can be constructed by squaring is called squarable.