The latus rectum of a conic section is the chord through a focus parallel to the conic
section directrix (Coxeter 1969). "Latus rectum" is a compound of the
Latin latus, meaning "side," and rectum, meaning "straight."
Half the latus rectum is called the semilatus rectum.
See alsoConic Section
, Conic Section Directrix
, Universal Parabolic Constant
Explore with Wolfram|Alpha
ReferencesCoxeter, H. S. M. Introduction to Geometry, 2nd ed. New York: Wiley, pp. 116-118, 1969.
on Wolfram|AlphaLatus Rectum
Cite this as:
Weisstein, Eric W. "Latus Rectum." From
MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LatusRectum.html