This channel focus on tutorials related to molecular simulations based on Gaussian and materials simulations based on the material studio. <br />Gaussian and MATERIALS STUDIO are software packages widely used in computational chemistry and materials science.<br /><br />Gaussian is a popular computational chemistry software that uses various quantum mechanical methods, such as density functional theory (DFT) and Hartree-Fock, to study the properties of molecules and solids. It can be used for geometry optimization, frequency calculations, and HOMO-LUMO calculations.<br /><br />MATERIALS STUDIO is a software package developed by Accelrys (now part of Biovia) that provides a wide range of materials modeling and simulation tools. It includes modules for quantum mechanics, molecular dynamics, and classical mechanics simulations, as well as databases of materials properties and tools for visualizing and analyzing simulation results.