Methods for computing $q$-polynomials
Matematičeskoe modelirovanie, Tome 13 (2001) no. 8, pp. 85-94
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The methods of computing the classical orthogonal polynomials of a discrete variable (called qpolynomials) are considered. Some difficulties connected with the instability of a calculation in all range of polynomial definition are discussed. These difficulties are illustrated on results of computing the Hahn polynomials. The stability of computational schemes with reference to round-off errors is investigated. Stable method of calculation is proposed. The calculations of Hahn and $q$-Hahn polynomials are carried out with fine accuracy.