1 citations · 1 across the 2 of their papers we have counts for
5 papers
Bézier form of dual bivariate Bernstein polynomials
Stanisław Lewanowicz, Paweł Keller, Paweł Woźny
Dual Bernstein polynomials of one or two variables have proved to be very useful in obtaining Bézier form of the -solution of the problem of best polynomial approximation of B…
On recursive algorithms for inverting tridiagonal matrices
Paweł Keller, Iwona Wróbel
If is a tridiagonal matrix, then the equations and defining the inverse of are in fact the second order recurrence relations for the elements in each row…
Constrained approximation of rational triangular Bézier surfaces by polynomial triangular Bézier surfaces
Stanisław Lewanowicz, Paweł Keller, Paweł Woźny
We propose a novel approach to the problem of polynomial approximation of rational Bézier triangular patches with prescribed boundary control points. The method is very efficient t…
Weighted polynomial approximation of rational Bézier curves
Stanisław Lewanowicz, Paweł Woźny, Paweł Keller
We present an efficient method to solve the problem of the constrained least squares approximation of the rational Bézier curve by the Bézier curve. The presented algorithm uses th…
Roundoff errors in the problem of computing Cauchy principal value integrals
Paweł Keller, Iwona Wróbel
We investigate the possibility of fast, accurate and reliable computation of the Cauchy principal value integrals using st…