---
title: "Modules"
keywords: spherical harmonics software package, spherical harmonic transform, legendre functions, multitaper spectral analysis, fortran, Python, gravity, magnetic field
sidebar: fortran_sidebar
permalink: f95-modules.html
summary: 
toc: false
folder: fortran
---

<style>
table:nth-of-type(n) {
    display:table;
    width:100%;
}
table:nth-of-type(n) th:nth-of-type(2) {
    width:75%;
}
</style>

| Module name | Description |
| ----------- | ----------- |
| SHTOOLS | Module containing the SHTOOLS function and subroutine declarations. |
| FFTW3 | Module containing declarations for the FFTW package. |
| ftypes | Module containing Fortran 95 type definitions used in SHTOOLS. |
| [PlanetsConstants](planets-constants.html) | Module containing planetary constants. |

