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Commit e0f1f873 authored by Theo Steininger's avatar Theo Steininger
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Merge branch 'master' of gitlab.mpcdf.mpg.de:ift/NIFTy

parents 39e7ec15 e1843d4d
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nifty/minimization/line_searching/line_search_strong_wolfe.py
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...@@ -116,7 +116,7 @@ class LineSearchStrongWolfe(LineSearch): ...@@ -116,7 +116,7 @@ class LineSearchStrongWolfe(LineSearch):
if self.preferred_initial_step_size is not None: if self.preferred_initial_step_size is not None:
alpha1 = self.preferred_initial_step_size alpha1 = self.preferred_initial_step_size
elif old_phi_0 is not None and phiprime_0 != 0: elif old_phi_0 is not None:
alpha1 = min(1.0, 1.01*2*(phi_0 - old_phi_0)/phiprime_0) alpha1 = min(1.0, 1.01*2*(phi_0 - old_phi_0)/phiprime_0)
if alpha1 < 0: if alpha1 < 0:
alpha1 = 1.0 alpha1 = 1.0
......
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