Switchback term
= Switchback term
A switchback term such as $\epsilon\log\epsilon$ is forced into a matched expansion when logarithms of a stretched coordinate split into parameter-dependent and local pieces in the overlap region.
= Switchback term
A switchback term such as $\epsilon\log\epsilon$ is forced into a matched expansion when logarithms of a stretched coordinate split into parameter-dependent and local pieces in the overlap region.