tree 5d11c911dab82907858693d478995bc385f9396f
parent 54fcbf893852272ba2158d6a56572a2eb3ccc41f
author Alex Stewart <alexs.mac@gmail.com> 1384770409 +0000
committer Sameer Agarwal <sandwichmaker@gmail.com> 1384886632 +0000

Decreasing update threshold for BFGS as per L-BFGS.

- Improves performance of BFGS on NIST, as per L-BFGS.
- Adding explanation of origin and purpose of Secant condition
  tolerance check for Hessian update in (L)BFGS.

Change-Id: If57b9957d31d8629c772c19a069e1e56e727b350