steffens history approximation theory euler bernstein birkhauser boston erd lyi extensions bloch p lya theorem number distinct real zeros polynomials ''journal de th orie des nombres de bordeaux'' ''' ''' erd lyi remez inequality linear combinations shifted gaussians ''math proc camb phil soc'' ''' ''' l n trefethen approximation theory approximation practice siam https webarchiveorg web http www mathsoxacuk chebfun atap external links https wwwmathtechnionacil hat history approximation theory hat http wwwemisde journals sat surveys approximation theory sat numerical analysis
Formal science Mathematics Applied mathematics Approximation theory