Belongs to Coupled Cluster part.
This module performs a single reference determinant singles and doubles coupled cluster type calculations. A number of triples corrections can be calculated, (T), +T and -T.
The CCSD program is written by L Visscher in cooperation with T.J. Lee and K.G. Dyall, NASA Ames Research Center. The skeleton of this code was taken from a code by T.J. Lee and D. Jayatilaka.
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