Re: fsolve regression

[John W. Eaton]

On 24-Feb-2009, Jaroslav Hajek wrote:

| Sorry for the delay. It was a trivial problem after all caused by not
| updating iteration count after unsuccesful iteration, which caused
| trust-region radius to be reinitialized over and over.
| I'm not sure, however, if this is compatible with Matlab - does it
| count unsuccesful iterations? I hope it does not matter to anyone. If
| Matlab uses a different enough algorithm, it may not even make sense.
| 
| With the new patch, your script gives:
| z0 =
| 
|    0.133000000000000
|    0.325115654084158
| 
| z =
| 
|    0.134806289085259
|    0.323387260675138
| 
| You can get even closer by setting lower TolX and TolFun (by default
| they're at sqrt(eps), ~eps requests maximum precision).

OK, now I'm able to run a fairly large set of examples that I have
that use fsolve.  I haven't looked at all the results in detail
(requires comparing plots), but the ones I have looked at seem fine.

Thanks,

jwe