Ancient Carthage the site of the city. Nearly all of the other Phoenician city-states and former Carthaginian dependencies subsequently fell into Roman hands. According to Roman sources, Phoenician colonists from modern-day Lebanon, led by Dido (also known as Queen Elissa), founded Carthage "circa" 814 BC. Queen Elissa (also known as "Alissar") was an exiled princess of the ancient Phoenician city of Tyre. At its peak, the metropolis she founded, Carthage, came to be called the "shining city", ruling 300 other cities around the western Mediterranean Sea and leading the Phoenician world. Elissa's brother, Pygmalion of Tyre, had murdered Elissa's husband, the high
DIDO (software) in solving for the costates in optimal control problems. DIDO generates spectrally accurate solutions whose extremality can be verified using Pontryagin's Minimum Principle. Because no knowledge of pseudospectral methods is necessary to use it, DIDO is often used as a fundamental mathematical tool for solving optimal control problems. That is, a solution obtained from DIDO is treated as a candidate solution for the application of Pontryagin's minimum principle as a necessary condition for optimality. DIDO is used world wide in academia, industry and government laboratories. Thanks to NASA, DIDO was flight-proven in 2006. On November 5, 2006, NASA used DIDO