Advanced tool for dynamic system optimization across multiple disciplines.
GPOPS-II (General Purpose Optimization Software II) is a software tool for solving optimization problems, particularly problems involving the optimization of dynamic systems. It is developed by the software company GPOPS and is used in a variety of applications, including engineering, science, and education. GPOPS-II includes a range of features for solving optimization problems, such as tools for defining optimization objectives and constraints, solving problems using various optimization algorithms, and analyzing results. It is used to study the behavior of dynamic systems and to optimize the performance of systems under various conditions. GPOPS-II is available for Windows, macOS, and Linux operating systems. It is often used in conjunction with other software tools, such as data analysis software and visualization software.
Operating system: Mac OS X, Linux, Windows
License: Proprietary, Free-of-charge for K - 12 or classroom use. Licensing fees apply for all academic, not-for profit, and commercial use (outside of classroom use)
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 19 October 2026
The middle half of the 147 with a price runs from €178 to €8,624.
