Paper:	Optimizing Functions Using ASCFIT
Volume:	172, Astronomical Data Analysis Software and Systems VIII
Page:	365
Authors:	Grumm, David
Abstract:	As part of the Smithsonian Astrophysical Observatory AXAF Science Center (ASC) Data Analysis Environment, ASCFIT was designed as a generalized fitting engine to enable users to fit models to the data that will be returned by AXAF, the Advanced X-ray Astrophysical Facility (Doe et al. 1996). I present a description of the use of a development version of ASCFIT as a function optimizer, in which the optimization methods available within ASCFIT are applied to seven benchmark functions of varying complexity. These functions are the 2-dimensional Gaussian function previously investigated by ASC, and six functions commonly used in optimization testing. The optimization methods combining the Powell technique with one of several other techniques successfully converged for all but one of the benchmark functions.

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