Clark Kimberling

Clark Kimberling (born November 7, 1942 in Hinsdale, Illinois) is a mathematician, musician, and composer. He has been a mathematics professor since 1970 at the University of Evansville. His research interests include triangle centers, integer sequences, and hymnology.

Kimberling received his PhD in mathematics in 1970 from the Illinois Institute of Technology, under the supervision of Abe Sklar. Since at least 1994, he has maintained a list of triangle centers and their properties. In its current on-line form, the Encyclopedia of Triangle Centers, this list comprises tens of thousands of entries.

Kimberling's golden triangle

Robert C. Schoen has defined "golden triangle" as a triangle with two of its sides in the golden ratio. Kimberling has proposed that Schoen's definition of golden triangle be extended to include triangles which have angles that are in the golden ratio. Kimberling has described a "doubly golden triangle" which has two sides that are in golden ratio and which also has two angles that are in golden ratio.

References

External links
 Kimberling's home page at UE
 Encyclopedia of Triangle Centers
 

Category:Living people
Category:1942 births
Category:20th-century American mathematicians
Category:21st-century American mathematicians
Category:Geometers
Category:Hymnologists
Category:Illinois Institute of Technology alumni
Category:Number theorists
Category:Musicians from Evansville, Indiana
Category:People from Hinsdale, Illinois
Category:American recorder players
Category:University of Evansville faculty
Category:Mathematicians from Illinois