[SciPy-user] optimize.fmin_l_bfgs_b problem

Marek Wojciechowski mwojc@p.lodz...
Mon Jun 9 08:50:53 CDT 2008


Hi!
The following command:
    optimize.fmin_l_bfgs_b(lambda x: x[0]**2, [-1.], iprint=1)
causes an error and breaks the python session with the following output:

RUNNING THE L-BFGS-B CODE

           * * *

At line 2647 of file scipy/optimize/lbfgsb/routines.f
Internal Error: printf is broken
Machine precision =

This occurs on scipy-0.6.0 and python 2.4 under Gentoo Linux. Is this the 
known bug?

Greetings,
-- 
Marek Wojciechowski


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