Added BFGS and gradient descent solvers

ipc-sim / rigid-ipc

Robust, intersection-free, simulations of rigid bodies.

https://ipc-sim.github.io/rigid-ipc

MIT License

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Closed zfergus closed 5 years ago

zfergus commented 5 years ago

Added BFGS and GD to barrier solver as inner solvers
Needed to move some functionality out of NewtonSolver and into OptimizationSolvers
TODO: Move free_dof out of the OptimizationSolver and into the optimization problem with the eval_* functions using free_dof to remove elements.