The Duke of Brunswick gave Gauss a fellowship to the Collegium Carolinum , where he attended from 1792 to 1795 . Gauss 's intellectual abilities attracted the attention of the Duke of Braunschweig , who sent him to the Collegium Carolinum ( now Technische UniversitÃ t Braunschweig ) , which he attended from 1792 to 1795 , and to the University of GÃ ttingen from 1795 to 1798 .