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D.3.2.8 charpoly
Procedure from library linalg.lib (see linalg_lib).
- Usage:
- charpoly(A[,v]); A square matrix, v string, name of a variable
- Return:
- poly, the characteristic polynomial det(E*v-A)
(default: v=name of last variable)
- Note:
- A must be independent of the variable v. The computation uses det.
If printlevel>0, det(E*v-A) is diplayed recursively.
Example:
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