09-Dec-2022 16:38:25 ccn_rule_test(): MATLAB/Octave version 4.2.2. Test ccn_rule(). 09-Dec-2022 16:38:25 ccn_rule(): MATLAB/Octave version 4.2.2 Compute a nested Clenshaw Curtis rule for approximating Integral ( A <= x <= B ) f(x) dx of order N. The user specifies N, A, B, and FILENAME. N is the number of points: A is the left endpoint; B is the right endpoint; FILENAME is used to generate 3 files: filename_w.txt - the weight file filename_x.txt - the abscissa file. filename_r.txt - the region file. N = 9 A = -1.000000 B = 1.000000 FILENAME = "ccn_o9". Creating quadrature files. "Root" file name is "ccn_o9". Weight file will be "ccn_o9_w.txt". Abscissa file will be "ccn_o9_x.txt". Region file will be "ccn_o9_r.txt". CCN_RULE: Normal end of execution. 09-Dec-2022 16:38:25 ccn_rule_test(): Normal end of execution. 09-Dec-2022 16:38:25