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.
Density, or volumic m (ISO 31), is a physical property and is a measure of mass per volume. The average density of an object equals its total mass divided by its total volume. An object made from a comparatively dense material (such as iron) will have more mass than an equal-sized object made from some less dense substance (such as aluminium). The mass per unit volume of a material.