Trigonometric Functions in the p-norm

Authors

  • Sunil Chebolu Illinois State University
  • Andrew Hatfield Illinois State University
  • Riley Klette Illinois State University
  • Christopher Moore Illinois State University
  • Elizabeth Warden Illinois State University

DOI:

https://doi.org/10.33043/Q5HyzDCBA8

Abstract

Trigonometry is the study of circular functions, which are functions defined on the unit circle x^2 +y^2 = 1, where distances are measured using the Euclidean norm. When distances are measured using the L_p-norm, we get generalized trigonometric functions. These are parametrizations of the unit p-circle |x|^p +|y|^p = 1. Investigating these new functions leads to interesting connections involving double angle formulas, norms induced by inner products, Stirling numbers, Bell polynomials, Lagrange inversion, gamma functions, and generalized π values.

Author Biographies

Sunil Chebolu, Illinois State University

Sunil Chebolu received his Ph.D. from the University of Washington in 2005. He is a professor at Illinois State University and his research interests lie in algebra and number theory. In his spare time, he enjoys playing his guitar or observing deep-sky objects through his telescope.

Andrew Hatfield, Illinois State University

Andrew Hatfield worked on this paper as an undergraduate studying mathematics at Illinois State University. He is currently at Illinois State working towards his master’s degree and wishes to attend a Ph.D. program, where he would like to research algebraic geometry.

Riley Klette, Illinois State University

Riley Klette is a junior at Illinois State University majoring in Secondary Education in Mathematics. After graduation, she plans on teaching in a high school mathematics classroom.

Christopher Moore, Illinois State University

Christopher Moore is a third-year student at Illinois State University majoring in Computer Science and minoring in Mathematics. After graduating, he plans to go into the field of software engineering and further his education by getting a master’s degree.

Elizabeth Warden, Illinois State University

Elizabeth Warden is a senior at Illinois State University, where she is majoring in secondary mathematics education. As a teacher, she hopes to utilize her research experience to inspire her students to think like mathematicians and explore unsolved problems.

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Published

2026-03-03

How to Cite

Chebolu, S., Hatfield, A., Klette, R., Moore, C., & Warden, E. (2026). Trigonometric Functions in the p-norm. Mathematics Exchange, 16(1), 2–22. https://doi.org/10.33043/Q5HyzDCBA8