# Elliptic cylinder

From Encyclopedia of Mathematics

A cylindrical surface of the second order having an ellipse as directrix. If this ellipse is real, then the surface is called real and its canonical equation has the form

if the ellipse is imaginary, then the surface is called imaginary and its canonical equation has the form

**How to Cite This Entry:**

Elliptic cylinder.

*Encyclopedia of Mathematics.*URL: http://encyclopediaofmath.org/index.php?title=Elliptic_cylinder&oldid=13326

This article was adapted from an original article by A.B. Ivanov (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article