Fig 1.
Stability region for the implicit Euler method and the 2-step BDF method for Example 5.1.
Fig 2.
Numerical solutions using numerical methods with different time step sizes for Example 5.1.
Fig 3.
Approximate solutions using the implicit Euler method with h = 0.01 for Example 5.1.
Fig 4.
Approximate solutions using the 2-step BDF method with h = 0.01 for Example 5.1.
Fig 5.
Stability region of the implicit Euler method and the 2-step BDF method for Example 5.2.
Fig 6.
Convergence analysis of the implicit Euler method and the 2-step BDF method for Example 5.2.
Table 1.
Approximate solutions by using the implicit Euler and the 2-step BDF method for Example 5.2.
Fig 7.
Numerical solutions using numerical methods with different time step sizes for Example 5.2.