"Polynômes orthogonaux." . . "Approximation, Théorie de l'." . . "méthode Tchebychev." . . "Systèmes de Tchebychev." . . . . . . . . . "Numerical approximation"@en . "Numerical approximation" . . . . . . . "Chebyshev Methods in Numerical Approximation"@it . . "Chebyshev methods in numerical approximation"@en . "Chebyshev methods in numerical approximation" . . . . . . . . . . . . . . . . . . . . . . . "approximation numérique." . . "Aproximaţie numerică." . . "Chebyshev, Sistemas de." . . "Séries orthogonales." . . "Numerieke methoden." . . "Tchebychev, Approximation de." . . "Fonctions orthogonales." . . "Čebyšev-Approximation." . . "polynôme Tchebychev." . . "Théorie de l'approximation." . . "approximation polynomiale." . . . . "Approximate computation." . .