Introduction
************

The periodic DFT program **BAND** can be used for calculations on
periodic systems, i.e. polymers, slabs and crystals. It uses Density
Functional Theory (DFT) in the Kohn-Sham approach. BAND shares many of
the core algorithms with ADF, although important differences remain (a
noteworthy difference is that BAND uses numerical atomic orbitals as
basis functions).

This User's Manual describes how to use the program, how input is
structured, what files are produced, and so on. The Examples section
explains the most popular features in detail, by commenting on the
input and output files in the $AMSHOME/examples/band directory.

Where references are made to the operating system (OS) and to the file
system on your computer the terminology of UNIX type OSs is used.

The **installation** of BAND is explained in the Installation manual.
There you can also find information about the license file, which you
need to run the program.

**Graphical User Interface (GUI) tutorials**: GUI overview tutorials,
BAND-GUI tutorials

This manual and other documentation is available at
https://www.scm.com. As mentioned in the license agreement, it is
mandatory, for publications in which BAND has been used, to cite the
lead references.
