SNOPT
Nonlinear Software Package
title: "SNOPT" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["numerical-software", "mathematical-optimization-software"] description: "Nonlinear Software Package" topic_path: "science/mathematics" source: "https://en.wikipedia.org/wiki/SNOPT" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Nonlinear Software Package ::
::data[format=table title="Infobox software"]
| Field | Value |
|---|---|
| name | SNOPT |
| developer | Philip Gill |
| Michael Saunders | |
| Walter Murray | |
| latest_release_version | 7.6.0 |
| operating_system | Cross-platform |
| programming language | Fortran |
| license | Proprietary |
| website | |
| :: |
| name = SNOPT | developer = Philip Gill Michael Saunders Walter Murray | latest_release_version = 7.6.0 | operating_system = Cross-platform | programming language = Fortran | license = Proprietary | website =
SNOPT, for Sparse Nonlinear OPTimizer, is a software package for solving large-scale nonlinear optimization problems written by Philip Gill, Walter Murray and Michael Saunders. SNOPT is mainly written in Fortran, but interfaces to C, C++, Python and MATLAB are available.
It employs a sparse sequential quadratic programming (SQP) algorithm with limited-memory quasi-Newton approximations to the Hessian of the Lagrangian. It is especially effective for nonlinear problems with functions and gradients that are expensive to evaluate. The functions should be smooth but need not be convex.
SNOPT is used in several trajectory optimization software packages, including Copernicus, AeroSpace Trajectory Optimization and Software (ASTOS), General Mission Analysis Tool, and Optimal Trajectories by Implicit Simulation (OTIS). It is also available in the Astrogator module of Systems Tool Kit.
SNOPT is supported in the AIMMS, AMPL, APMonitor, General Algebraic Modeling System (GAMS), and TOMLAB modeling systems.
References
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::