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Read, write and analyze MD trajectories with only a few lines of Python code.

With MDTraj, you can

• Read and write from every MD format imaginable (pdb, xtc, trr, dcd, binpos, netcdf, mdcrd, prmtop, ...)
• Run blazingly fast RMSD calculations (4x the speed of the original Theobald QCP).
• Use tons of analysis functions like bonds/angles/dihedrals, hydrogen bonding identification, secondary structure assignment, NMR observables.
• Use a lightweight API, with a focus on speed and vectorized operations.

For details, see the website at mdtraj.org. To get involved, take a look at the [github issue tracker](https://github.com/simtk/mdtraj/issues and/or the user forums discourse.mdtraj.org.

License: GNU LGPL version 2.1, or at your option a later version of the license. Various sub-portions of this library may be independently distributed under different licenses. See those files for their specific terms.