journal6 ›› 2012, Vol. 33 ›› Issue (4): 11-15.DOI: 10.3969/j.issn.1007-2985.2012.04.003

• Mathematics • Previous Articles     Next Articles

Direct Method of  Findigthe Extreme Value of Normal Curvature


  1. (College of Mathematics and System Science,LMIB of the Ministry of Education,Beihang University,Beijing 100191,China)
  • Online:2012-07-25 Published:2012-09-11

Abstract: The direct method of finding  the extreme value of normal curvature and the extreme value direction are considered.A direct derivation method is proposed,and its properties as matrix characteristic value and characteristic vector are obtained.

Key words: extreme value of normal curvature;direction of the extreme value;characteristic value, characteristic vector

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