Two simple algorithms for discrete rational approximation

I. Barrodale, J. C. Mason
1970 Mathematics of Computation  
This paper reports on computational experience with algorithms due to Loeb and Appel for rational approximation on discrete point sets. Following a brief review of the linear discrete approximation problem, the two rational algorithms are stated in a general setting. Finally, several numerical examples of applications to lu h, and 4» approximation are supplied and discussed.
doi:10.1090/s0025-5718-1970-0301894-x fatcat:yqzxzwhs5rai7dsp2ci3tuwv7y