Logarithmically concave function: Difference between revisions

Revision as of 21:34, 23 September 2005

Revision as of 17:51, 19 December 2005

Line 1:

A function <math>f</math> is '''log-concave''', if its [[natural log]] <math>\ln(f(x))</math>, is concave. Every log-[[concave]] function is [[log-concave]], however the reverse does not necessarily hold.

In parallel, a function is '''log-convex''' if its natural log is convex.