Algorithms for polynomials in Bernstein form
Computer Aided Geometric Design
On the Multivariate Horner Scheme
SIAM Journal on Numerical Analysis
Curves and surfaces for CAGD: a practical guide
Curves and surfaces for CAGD: a practical guide
Accuracy and Stability of Numerical Algorithms
Accuracy and Stability of Numerical Algorithms
Weighted interpolation for equidistant nodes
Numerical Algorithms
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A roundoff error analysis of formulae for evaluating polynomials is performed. The considered formulae are linear combinations of basis functions, which can be computed with high relative accuracy. We have taken into account that all steps but the last one can be computed to high relative accuracy. The exactness of the initial data is crucial for obtaining low error bounds. The Lagrange interpolation formula and related formulae are considered and numerical experiments are provided.