Abstract
The conditions under which Huang's conjugate gradient method generates descent directions are given and discussed. Bounds for the condition number of the inverse Hessian matrix are estimated for the case of a symmetric update.
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Communicated by A. Miele
The author is much indebted to Professor C. G. Broyden of the Essex University Computing Center, for valuable advice and criticism; he is also grateful to Drs. J. Greenstadt and A. R. Gourlay for having sent copies of their unpublished papers.
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Spedicato, E. Stability of Huang's update for the conjugate gradient method. J Optim Theory Appl 11, 469–479 (1973). https://doi.org/10.1007/BF00935660
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DOI: https://doi.org/10.1007/BF00935660