Only after his college course he took up the study of mathematics.
He now works as a teacher of mathematics at second level.
In his later years, he turned to the history of mathematics and science.
And don't ask me what kind of mathematics he knew.
The fine art of mathematics was to them something they could see little use for.
He became a full professor of mathematics at age 23.
A focus spent in the subject areas of mathematics, science and technology.
He was also a professor in the department of mathematics and computer science.
As for how long it took, there's a small matter of mathematics.
Although in the army, he continued his study of mathematics.