A half-million diesel Volkswagen models have been cited for emissions violations. Here’s our handy guide to what’s happening.

W. Morven Gentleman, Algorithm AS 75: Basic Procedures for Large, Sparse or Weighted Linear Least Problems, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 23, No. 3 ...

The use of a non-conventional linear programming technique, involving a piecewise differentiable penalty function minimization, is presented in this paper in connection with power system Constrained ...