theorem on the number of distinct real zeros of polynomials", Journal de théorie des nombres de Bordeaux 20 (2008), 281–287. T. Erdélyi, "The Remez inequality for linear combinations of shifted Gaussians", Math. Proc. Camb. Phil. Soc. 146 (2009), 523–530. L. N. Trefethen, "Approximation theory and approximation practice", SIAM 2013. External links History of Approximation Theory (HAT) Surveys in Approximation Theory (SAT) Numerical analysis