Dido, Queen of Carthage (play) Dido, Queen of Carthage (play) Dido, Queen of Carthage (full title: The Tragedie of Dido Queene of Carthage) is a short play written by the English playwright Christopher Marlowe, with possible contributions by Thomas Nashe. The story of the play focuses on the classical figure of Dido, the Queen of Carthage. It tells an intense dramatic tale of Dido and her fanatical love for Aeneas (induced by Cupid), Aeneas' betrayal of her and her eventual suicide on his departure for Italy. The playwrights depended upon Books 1, 2, and 4 of Virgil's "Aeneid" as their main source. "Dido" is based
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