Sigurd Bernardus Angenent (born 1960)[1] is a Dutch-born mathematician and professor at the University of Wisconsin–Madison.
[6] He obtained his PhD in Mathematics from Leiden University in 1986.
[7] In 1996 Angenent became a correspondent of the Royal Netherlands Academy of Arts and Sciences.
After becoming frustrated with textbooks' high prices and poor quality, he wrote and made available his own notes for all classes.
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