Figure 1
From: Lebesgue functions and Lebesgue constants in polynomial interpolation
Graphs of \(\pmb{L_{5} (E;x) }\) (left), \(\pmb{L_{5} (T;x) }\) (center), \(\pmb{L_{5} (\hat{T};x) }\) (right).
Figure 1 | Journal of Inequalities and Applications