Classroom note: The inscribed sphere of an n-simplex

Abstract

The centre and radius of the inscribed n-dimensional sphere of an n-simplex are derived using elementary linear algebra.

Acknowledgment

The problem solved here is the outgrowth of a discussion on an unpublished problem posed by our colleague, Professor H. Azad.

Notes

* The author to whom the correspondence to be addressed.

Additional information

Notes on contributors

M. El-Gebeily

* The author to whom the correspondence to be addressed.