Reprint of: The best of two worlds: The expedite boundary element method

► The method provides approximations of the matrices of the collocation BEM. ► Generally curved, 2D and 3D elements for potential and elasticity problems are used. ► No singular or quasi-singular numerical integration is necessary. ► The evaluation of results at any internal or boundary points requires no integrations. ► The method can be advantageously used in combination with the fast multi-pole method.