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http://users.eecs.northwestern.edu/~nocedal/lbfgsb.html Condition for Use: This software is freely available, but we expect that all publications describing work using this software , or all commercial products using it, quote at least one of the references given below. This software is released under the BSD License. This note has been added to the NOTICE file at the top of the ITK source tree. This remark describes an improvement and a correction to Algorithm 778. It is shown that the performance of the algorithm can be improved significantly by making a relatively simple modification to the subspace minimization phase. The correction concerns an error caused by the use of routine dpmeps to estimate machine precision. Change-Id: Iee35b8c6ee383b27a9870f73edbb604508c6ef2f
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