test_approx_test, a C++ code which calls test_approx(), which provides sets of test data for approximation algorithms.
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test_approx, a C++ code which defines test problems for approximation, provided as a set of (x,y) data.
TEST07 creates data files for an Overhauser spline interpolant to data set 7.
TEST08 creates data files for a cubic spline interpolant to data set 7.
TEST10 creates data files for a B-spline approximant to data set 7.
TEST11 creates data files for a beta spline approximant to data set 7:
TEST12 creates data files for a Bernstein approximant to data set 5.
TEST13 creates data files for a cubic spline interpolant to data set 5.