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D.3.2.18 jordanmatrix

Procedure from library linalg.lib (see linalg_lib).

Usage:
jordanmatrix(jd); jd list of ideal and list of intvecs

Return:
The procedure returns the Jordan matrix J, satisfying:
- eigenvalues of J are given by jd[1]
- j-th Jordan block of J with eigenvalue jd[1][i] has size jd[2][i][j]

Display:
The procedure displays comments if printlevel>=1.

Example:
 
LIB "linalg.lib";
ring R=0,x,dp;
list l;
l[1]=ideal(2,3);
l[2]=list(intvec(1),intvec(2));
print(jordanmatrix(l));


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            User manual for Singular version 2-0-0, February 2001, generated by texi2html.