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From the initial class of four students , it has grown today to enroll nearly forty . Philip immediately sat down and wrote a violent letter to his uncle . Fraulein Anna , the Frau Professor 's daughter , addressed herself to him frequently from a sense of duty , but the other said little : she looked at him now and then with sparkling eyes , and sometimes to his confusion laughed outright . In between the programs running in the northern and southern hemispheres , he found time in 1978 and 1979 to help initiate in Germany , with Professor Peter Roquette , a similar mathematics program at the University of Heidelberg.Students who have completed the Ross summer program are now scientists , teachers , and university professors ( four are currently on the faculty at OSU ) , others are researchers in industrial settings . " .... He went back to his study and turned the conversation over in his mind . Those statements seem clear , and are often used as first steps in proving more advanced results ( like Euler 's formula ) . " I feel good about it , " said Mrs. Rhodus . It was a mild , pained letter from Aunt Louisa , saying that he should not write such things to his uncle , who was very much distressed . Philip closed the door behind him and limped back to his own study .