Principal normal
From Encyclopedia of Mathematics
A normal to a curve 
passing through a point 
of 
and lying in the osculating plane to 
at 
. If 
is the parametric equation of the curve and the value 
corresponds to 
, then the equation of the principal normal in vector form is:
 |
Comments
References
| [a1] | D.J. Struik, "Lectures in classical differential calculus" , Dover, reprint (1988) pp. 13 |
| [a2] | R.S. Millman, G.D. Parker, "Elements of differential geometry" , Prentice-Hall (1977) pp. 26 |
How to Cite This Entry:
Principal normal. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Principal_normal&oldid=48291
Principal normal. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Principal_normal&oldid=48291
This article was adapted from an original article by E.V. Shikin (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article