Dido, Queen of Carthage (opera) but has fallen in love with the Trojan warrior Aeneas, who had been shipwrecked on the shores of her city. Iarbas appears (disguised as his own ambassador and using the name "Orodes") to warn Dido that Aeneas cannot become King of Carthage. Nevertheless, Dido refuses to marry Iarbas. Although Aeneas is now in love with Dido, he asks her sister Anna to tell Dido of his plans to leave Carthage for Italy. War then breaks out between Aeneas and Iarbas. Dido convinces Aeneas to become her husband and share the throne of Carthage. However, when the ghost of Aeneas' father
DIDO (software) to maneuver the International Space Station to perform the zero-propellant maneuver. Since this flight demonstration, DIDO was used for the International Space Station and other NASA spacecraft. It is also used in other industries. DIDO is also available as a MATLAB "toolbox" product. It does not require the MATLAB Optimization Toolbox or any other third-party software like SNOPT or IPOPT or other nonlinear programming solvers. The MATLAB/DIDO toolbox does not require a "guess" to run the algorithm. This and other distinguishing features have made DIDO a popular tool to solve optimal control problems. The MATLAB optimal control toolbox has been