55     double c0, c1, cov00, cov01, cov11, sumsq;  in main()  local
65                     &c0, &c1, &cov00, &cov01, &cov11, &sumsq);  in main()
74     gsl_test_rel (cov11, expected_cov11, 1e-10, "norris gsl_fit_linear cov11") ;  in main()
79     double c0, c1, cov00, cov01, cov11, sumsq;  in main()  local
89                      &c0, &c1, &cov00, &cov01, &cov11, &sumsq);  in main()
95     gsl_test_rel (cov11, expected_cov11, 1e-10, "norris gsl_fit_wlinear cov11") ;  in main()
107     double c1, cov11, sumsq;  in main()  local
113     gsl_fit_mul (x, xstride, y, ystride, noint1_n, &c1, &cov11, &sumsq);  in main()
116     gsl_test_rel (cov11, expected_cov11, 1e-10, "noint1 gsl_fit_mul cov11") ;  in main()
121     double c1, cov11, sumsq;  in main()  local
127     gsl_fit_wmul (x, xstride, w, wstride, y, ystride, noint1_n, &c1, &cov11, &sumsq);  in main()
130     gsl_test_rel (cov11, expected_cov11, 1e-10, "noint1 gsl_fit_wmul cov11") ;  in main()
143     double c1, cov11, sumsq;  in main()  local
149     gsl_fit_mul (x, xstride, y, ystride, noint2_n, &c1, &cov11, &sumsq);  in main()
152     gsl_test_rel (cov11, expected_cov11, 1e-10, "noint2 gsl_fit_mul cov11") ;  in main()
157     double c1, cov11, sumsq;  in main()  local
163     gsl_fit_wmul (x, xstride, w, wstride, y, ystride, noint2_n, &c1, &cov11, &sumsq);  in main()
166     gsl_test_rel (cov11, expected_cov11, 1e-10, "noint2 gsl_fit_wmul cov11") ;  in main()