Modified Crank-Nicolson Difference Schemes for Nonlocal Boundary Value Problem for the Schrödinger Equation

Table 2

Relative errors for the approximate solution of problem (5.1).

Method	𝑁=𝑀=20	𝑁=𝑀=40	𝑁=𝑀=80	𝑁=𝑀=160
One-modified Crank-Nicholson	0.0194	0.0054	0.0014	0.00035
Two-modified Crank-Nicholson	0.0320	0.0101	0.0027	0.00069
Three-modified Crank-Nicholson	0.0385	0.0141	0.0040	0.00100