# Release66:NWChem Documentation

### From NWChem

# NWChem 6.6 User Documentation

A PDF version of the Documentation pages is available.

**Potential Energy Surface Analysis**

- Constraints for Optimization
- Geometry Optimization (Minimization & Transition State Search)
- Hessians & Vibrational Frequencies
- Nudged Elastic Band (NEB) and Zero Temperature String Methods