File list (Check if you may need any files):
hypo_sand_octave
................\.DS_Store
................\constraints.m
................\driver_HYP.m
................\f_hyp.m
................\hard.txt
................\hypo_update.m
................\hyp_stif.m
................\init_state.m
................\input_data.m
................\inv_e.m
................\inv_e.txt
................\inv_s.m
................\inv_s.txt
................\octave-core
................\strains.txt
................\stresses.txt
................\stress_mult.m
................\stress_trace.m
................\update.m
................\xyplot_vmh.m