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comparison scripts/optimization/fsolve.m @ 9628:73e6ad869f08

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further correct initial TR step strategy
author Jaroslav Hajek <highegg@gmail.com>
date Tue, 08 Sep 2009 14:27:35 +0200
parents bc0739d02724
children f22bbc5d56e9
comparison
equal deleted inserted replaced
9627:5bcfa0b346e8 9628:73e6ad869f08
232 if (niter == 1) 232 if (niter == 1)
233 dg = jcn; 233 dg = jcn;
234 dg(dg == 0) = 1; 234 dg(dg == 0) = 1;
235 xn = norm (dg .* x); 235 xn = norm (dg .* x);
236 ## FIXME: something better? 236 ## FIXME: something better?
237 delta = max (factor * xn, 1); 237 delta = factor * max (xn, 1);
238 endif 238 endif
239 239
240 ## Rescale adaptively. 240 ## Rescale adaptively.
241 ## FIXME: the original minpack used the following rescaling strategy: 241 ## FIXME: the original minpack used the following rescaling strategy:
242 ## dg = max (dg, jcn); 242 ## dg = max (dg, jcn);