Add harmonic oscillator option
Add harmonic oscillator option

hpfem/hermes1d,certik/hermes1d,certik/hermes1d-llnl,certik/hermes1d,hpfem/hermes1d,certik/hermes1d,certik/hermes1d-llnl,certik/hermes1d-llnl,hpfem/hermes1d