Another trick/assumption is that you can linearise any non-linear function by taking a first order Taylor expansion.    From Wordnik.com.  [An Exchange at Scientific American « Climate Audit] Reference

Perhaps it was only an attempt to administer and organise myself, to rationalise my reading and linearise my note-taking.    From Wordnik.com.  [Spurious] Reference

Quite nonlinear, so he solution doesn’t converge if the grid is refined, only when in linearise the problem.    From Wordnik.com.  [Weblog Update: November 2006 « Climate Audit] Reference