Approximate • Approximated • Break • Cases • Change • Common • Constant • Continuous • Depending • Describe • Discontinuity • Discontinuous • Does • Equation • Examples • Exist • Filtering • From • Function • Functions • Gas • Gradual • How • Hyperbolic • Impossible • Its • Jump • Linear • Made • Maybe • Never • Pattern • Periodic • Phenomena • Physical • Point • Predictable • Problem • Random • Related • Removable • Shock • Singularities • Smooth • Solution • Some • System • Transition • Where • Yes