A Jensen disk is a disk in the complex plane whose diameter joins complex conjugate roots of a polynomial (Trott 2004, p. 22).
Jensen Disk
See also
Jensen's TheoremExplore with Wolfram|Alpha
References
Trott, M. The Mathematica GuideBook for Programming. New York: Springer-Verlag, 2004. http://www.mathematicaguidebooks.org/.Referenced on Wolfram|Alpha
Jensen DiskCite this as:
Weisstein, Eric W. "Jensen Disk." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/JensenDisk.html