Number Theory Library

{{More citations needed|date=January 2021}}

{{Infobox software

| name = NTL

| developer = Victor Shoup and others

| latest release version = 11.5.1[https://www.shoup.net/ntl/doc/tour-changes.html A Tour of NTL: Summary of Changes]

| latest release date = {{Start date and age|2021|06|23}}

| programming language = C++

| operating system = Cross-platform

| genre = Software library

| license = LGPL

| website = {{URL|http://www.shoup.net/ntl/}}

}}

{{Portal|Free and open-source software}}

NTL is a C++ library for doing number theory. NTL supports arbitrary length integer and arbitrary precision floating point arithmetic, finite fields, vectors, matrices, polynomials, lattice basis reduction and basic linear algebra. NTL is free software released under the GNU Lesser General Public License v2.1.{{Cite web|title=NTL: A Library for doing Number Theory|url=https://shoup.net/ntl/|access-date=2020-06-06|website=shoup.net}}