Talk:Method of matched asymptotic expansions

Solution $$y_I$$
Am I being stupid, or is $$y_I$$ not actually a solution to the boundary value problem (BVP)? Finding the 2 derivatives and subbing them and $$y_I$$ into the BVP equation leaves $$e=0$$ ?????!?!!?!? Mmitchell10 (talk) 09:41, 19 October 2012 (UTC)