21 April 2020 12:50:55.118 PM etdrk4_test FORTRAN90 version Test etdrk4. burgers_etdrk4_test burgers_etdrk4() solves the Burgers equation using the ETD RK4 method. gnuplot_surface: FORTRAN90 version gnuplot_surface: data stored in "burgers_etdrk4_data.txt". gnuplot_surface: plot commands stored in "burgers_etdrk4_commands.txt". cheb_test: Compute the Chebyshev differentiation matrix and grid. Chebyshev points: 1: 1.0000000 2: 0.80901699 3: 0.30901699 4: -0.30901699 5: -0.80901699 6: -1.0000000 Chebyshev differentiation matrix. Col 1 2 3 4 5 Row 1: 8.50000 -10.4721 2.89443 -1.52786 1.10557 2: 2.61803 -1.17082 -2. 0.894427 -0.618034 3: -0.723607 2. -0.170820 -1.61803 0.894427 4: 0.381966 -0.894427 1.61803 0.170820 -2. 5: -0.276393 0.618034 -0.894427 2. 1.17082 6: 0.500000 -1.10557 1.52786 -2.89443 10.4721 Col 6 Row 1: -0.500000 2: 0.276393 3: -0.381966 4: 0.723607 5: -2.61803 6: -8.50000 kdv_etdrk4_test kdv_etdrk4() solves the Korteweg-deVries equation using the ETD RK4 method. gnuplot_surface: FORTRAN90 version gnuplot_surface: data stored in "kdv_etdrk4_data.txt". gnuplot_surface: plot commands stored in "kdv_etdrk4_commands.txt". kdv_ift_test kdv_ift() solves the Korteweg-deVries equation using the FFT method with an integrating factor. gnuplot_surface: FORTRAN90 version gnuplot_surface: data stored in "kdv_ift_data.txt". gnuplot_surface: plot commands stored in "kdv_ift_commands.txt". etdrk4_test Normal end of execution. 21 April 2020 12:51:09.586 PM