https://github.com/briochemc/solvers
https://github.com/briochemc/solvers
Last synced: 3 months ago
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- Host: GitHub
- URL: https://github.com/briochemc/solvers
- Owner: briochemc
- Created: 2017-10-31T19:11:18.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2017-11-01T02:18:14.000Z (over 7 years ago)
- Last Synced: 2024-10-12T10:30:19.612Z (7 months ago)
- Language: Matlab
- Size: 14.6 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: ReadMe.md
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README
# MATLAB solvers
These solvers were edited from the solvers available at [this link](http://www.siam.org/books/fa01/), where you can find MATLAB code written by C. T. Kelley (2003). These solvers attempt to solve f(x)=0 for large sparse nonlinear systems.
Differences with original code:
- The jcobians are now computed numerically using MATLAB's built-in `numjac`.
- The code indentation has been corrected.
- The unused subfunctions have been cut.
- The factorization of the jacobian by `lu` has been replaced by the use of MATLAB's `linfactor` which I believe adds an extra permutation step speeding things up.
## To do
- [ ] Include the complex derivative for numerical precision of the gradient (only for when f is twice differentiable in C (needed for complex numbers to go through the derivative).
- [ ] Allow for color groups `G` to be used as input to avoid the first slow numjac calculation.