generate questions: In 1870, Tesla moved to Karlovac, to attend school at the Higher Real Gymnasium, where he was profoundly influenced by a math teacher Martin Sekulić.:32 The classes were held in German, as it was a school within the Austro-Hungarian Military Frontier. Tesla was able to perform integral calculus in his head, which prompted his teachers to believe that he was cheating. He finished a four-year term in three years, graduating in 1873.:33
Who was Tesla influenced by while in school? {sep_token} What language were classes held in at Tesla's school? {sep_token} What could Tesla perform in his head? {sep_token} What did Tesla's teachers believe he was doing while in school? {sep_token} In what year did Tesla graduate from the Higher Real Gymnasium? {sep_token} When did Tesla go to Karlovac? {sep_token} Why did Tesla go to Karlovac? {sep_token} Who was Tesla's main influence in Karlovac? {sep_token} In what language were the classes given? {sep_token} When did Tesla graduate? {sep_token}