Generalized Finite Element Methods Polynomial interpolation Suvranu De
This is known as Runge phenomenon. This problem may be circumvented by using nonuniform nodal spacing (e.g., Chebyshev points) Higher-order Polynomial interpolation Example Equispaced points Max(|wn+1(x)|)=1 Higher-order Polynomial interpolation Example Equispaced points Max(|wn+1(x)|)=0.384888 ...