A multivitamin is a preparation intended to be a dietary supplement with vitamins, dietary minerals, and other nutritional elements.Such preparations are available in the form of tablets, capsules, pastilles, powders, liquids, and injectable formulations. multivitamin is a preparation intended to be a dietary supplement with vitamins, dietary minerals, and other nutritional elements.
Hence the name density functional theory comes from the use of functionals of the electron density. DFT is among the most popular and versatile methods available in condensed-matter physics, computational physics, and computational chemistry.n general, density functional theory finds increasingly broad application in the chemical and material sciences for the interpretation and prediction of complex system behavior at an atomic scale.
The technical definition of density is mass per unit volume. Generally, density describes how tightly packed something is. An object with a lot of material in a small space is more dense than an object that has lots of air space included.