简介:Inthispaper,weinvestigatethenegativeextremumsoffundamentalfunctionsofLagrangeinterpolationbasedonChebyshevnodes.Moreover,weestablishsomecompanionresultstothetheoremofJ.Szabadosonthepositiveextremum.
On the Negative Extremums of Fundamental Functions of Lagrange Interpolation Based on Chebyshev Nodes