1-D Heat diffusion in a rod

one dimensional FEM transient heat conduction

Simple FEM code to solve heat transfer in 1D. Easy to read and can be translated directly to formulas in books.
Problem: Transient heat conduction in a unit rod.
Solution compared to an exact solution by Carslaw and Jaeger (1959).
Warning: Has "clear all" (at top of script)
References:
W. Lewis et al. (1996): The Finite Element Method in Heat Transfer Analysis, John Wiley and Sons, West Sussex England
Strang G. and Fix G. (2008): An analysis of the Finite Element Method,Second Edition, Wellesley-Cambridge Press, Wellesley USA
Carslaw H.S. and Jaeger J.C. (1959): Conduction of heat in solids, Oxford at the Clarendon Press, Second Edition