September 7 2021 10:07:26.431 AM CHEBYSHEV1_RULE FORTRAN90 version Compute a Gauss-Chebyshev type 1 rule for Integral ( A <= x <= B ) f(x) / sqrt ( ( x - A ) * ( B - x ) ) dx of order ORDER. The user specifies ORDER, A, B and FILENAME. ORDER 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. ORDER = 5 A = -1.00000 B = 1.00000 FILENAME = "cheby1_o5". Creating quadrature files. "Root" file name is "cheby1_o5". Weight file will be "cheby1_o5_w.txt". Abscissa file will be "cheby1_o5_x.txt". Region file will be "cheby1_o5_r.txt". chebyshev1_rule(): Normal end of execution. September 7 2021 10:07:26.431 AM