Derive the finite difference scheme for the numerical solution of the first-order diffusion equation IBVP using the Crank-Nicolson methodElyorjon Kurbonov, Nodir Rakhimov, Shokhabbos Juraev and Feruza IslamovaE3S Web of Conf., 402 (2023) 03029DOI: https://doi.org/10.1051/e3sconf/202340203029