Figure 11From: Nonstandard finite difference variational integrators for nonlinear Schrödinger equation with variable coefficientsThe l 2 -errors as a function of the CPU time for the NSFD variational integrator (14), Crank-Nicolson scheme and implicit Euler method (17). The l 2 -errors for the terminating time T=5 as a function of the CPU time for the NSFD variational integrator (14), the Crank-Nicolson scheme and the implicit Euler method (17) for the problem (16) (μ=1).Back to article page