# The omega2.out output file

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## Purpose

This file contains the frequency square [math]\omega^2(\vec{k})[/math] at different k points.

## File format

- It has
`N_kpoints`

rows and`3 * N_basis`

columns, where`N_basis`

is the number of basis atoms in the unit cell define in the basis.in file and`N_kpoints`

is the number of k points in the kpoints.in file.

- Each line corresponds to one k point. Each line has
`3 * N_basis`

numbers, corresponding to

the `3 * N_basis`

values for [math]\omega^2(\vec{k})[/math] (in units of [THz]^{2}) in the order of increasing magnitude.