DIDO (software) used to solve problems in aerospace, robotics and search theory. The optimal control toolbox is named after Dido, the legendary founder and first queen of Carthage who is famous in mathematics for her remarkable solution to a constrained optimal control problem even before the invention of calculus. Invented by Ross, DIDO was first produced in 2001. The software is widely cited and has many firsts to its credit: Several different versions of DIDO are available from Elissar Global. DIDO (software) DIDO ( ) is a software product for solving general-purpose optimal control problems. It is widely used in academia, industry,
Dvin (ancient city) Shaddadids continued to rule the city as Seljuk vassals until the Georgian King George III conquered the city in 1173. In 1201-1203, during the reign of Queen Tamar, the city was again under Georgian rule. In 1236, the city was completely destroyed by Mongols. Dvin was the birthplace of Najm ad-Din Ayyub and Asad ad-Din Shirkuh bin Shadhi, Kurdish generals in the service of the Seljuks; Najm ad-Din Ayyub's son, Saladin, was the founder of the Ayyubid dynasty. Saladin was born in Tikrit, Iraq, but his family had originated from the ancient city of Dvin. Situated in the central square