Dear all,

do you know some routines to draw ellipses and its axes given the algebraic
equation?  The application is to draw ellipses of equal concentration for
bivariate normal distribution given the vector mean and the covariance matrix.

Thank you. Sincerely, Salvatore Ingrassia



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Prof. Salvatore Ingrassia
Dipartimento di Economia e Statistica
Facoltà di Economia
Universita' della Calabria                                       
87036 Arcavacata di Rende (CS), Italy                                       
 
Tel. +39 0984 492432    Fax +39 0984 492421
e-mail: s.ingrassia@unical.it      
http://www.ecostat.unical.it/Ingrassia/
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