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) DIDO (software) DIDO ( ) is a software product for solving general-purpose optimal control problems. It is widely used in academia, industry, and NASA. Hailed as a breakthrough software, DIDO is based on the pseudospectral optimal control theory of Ross and Fahroo. DIDO utilizes trademarked expressions and objects that facilitate a user to quickly formulate and solve optimal control problems. Rapidity in formulation is achieved through a set of DIDO expressions which are based on variables commonly used in optimal control theory. For example, the state, control and time variables are formatted as: The entire problem is codified using the