final\frequence.asv .....\frequence.m .....\solve_wave.asv .....\solve_wave.m .....\TDMA.m .....\wave_EIm.asv .....\wave_Eim.m .....\wave_lax.asv .....\wave_lax.m .....\wave_LaxM.asv .....\wave_LaxM.m final