claw/applications/euler/1d/shocktube Euler equations with shock-tube initial data (a Riemann problem) The shock-tube data is specified in setprob.data. To plot a comparison of fine and coarse grid solutions, first run code in subdirectory qref, then in main directory. The reference solution (in ./qref) will be plotted on top of the final computed coarse grid solution using the 'plotframe1ez' command called from 'afterframe.m'.