3 November 2023 11:03:23.164 PM product_rule(): FORTRAN77 version Create a multidimensional product rule as a product of distinct 1D integration rules. FORTRAN77 limitations: Maximum number of dimensions = 20 Maximum order of 1D rule = 100 Maximum order of final rule = 10000 Number of points in 1D rule = 3 Number of points in 1D rule = 2 Creating product quadrature rule X file = "ccgl_d2_o3x2_x.txt". Creating product quadrature rule W file = "ccgl_d2_o3x2_w.txt". Creating product quadrature rule R file = "ccgl_d2_o3x2_r.txt". product_rule(): Normal end of execution. 3 November 2023 11:03:23.165 PM