scholarly journals Near-circularity of the error curve in complex Chebyshev approximation

1981 ◽  
Vol 31 (4) ◽  
pp. 344-367 ◽  
Author(s):  
Lloyd N Trefethen
Keyword(s):  
Chebyshev Approximation ◽  
Error Curve

Chebyshev approximation to data by geometric elements

1993 ◽  
Vol 5 (10) ◽  
pp. 509-522 ◽  
Author(s):  
Rudolf Drieschner
Keyword(s):  
Chebyshev Approximation ◽  
Geometric Elements

Algorithm for Spatial Straightness Evaluation Using Theories of Linear Complex Chebyshev Approximation and Semi-infinite Linear Programming

2005 ◽  
Vol 128 (1) ◽  
pp. 167-174 ◽  
Author(s):  
LiMin Zhu ◽  
Ye Ding ◽  
Han Ding
Keyword(s):  
Linear Programming ◽  
Chebyshev Approximation ◽  
Approximation Problem ◽  
Linear Complex ◽  
Infinite Linear Programming ◽  
Minimum Zone ◽  
Effectiveness And Efficiency ◽  
Primal And Dual ◽  
Straightness Error ◽  
Infinite Linear

This paper presents a novel methodology for evaluating spatial straightness error based on the minimum zone criterion. Spatial straightness evaluation is formulated as a linear complex Chebyshev approximation problem, and then reformulated as a semi-infinite linear programming problem. Both models for the primal and dual programs are developed. An efficient simplex-based algorithm is employed to solve the dual linear program to yield the straightness value. Also a general algebraic criterion for checking the optimality of the solution is proposed. Numerical experiments are given to verify the effectiveness and efficiency of the presented algorithm.

Polynomial Chebyshev approximation of a complex transfer function

Computing ◽  
1971 ◽  
Vol 8 (3-4) ◽  
pp. 335-342
Author(s):  
C. Dierick ◽  
Y. Kamp
Keyword(s):  
Transfer Function ◽  
Chebyshev Approximation
Sign in / Sign up

Export Citation Format

Share Document