Gaussian is a computational chemistry software package used for performing electronic structure calculations with various methods. It is widely used in academia and industry for studying molecular systems, reactions, and properties. Gaussian can perform calculations based on a variety of quantum mechanical models, such as Hartree-Fock theory, density functional theory, and post-Hartree-Fock methods. It is known for its accuracy and versatility, and is available for a wide range of computing platforms.
