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Description
Non-commutative geometry provides a way to describe ordinary space using matrix approximations which preserve the fundamental symmetries of the space. The standard example is the fuzzy sphere, whose application to the physics of branes is known.. Here we present a matrix approximation to the disc based on the non-commutative plane. To show the virtues of the approximation we will show how the eigenvaues of the Laplacian approximate the Bessel functions.