Man Scilab

det - determinant

Calling Sequence

det(X)

[e,m]=det(X)

Parameters

• X : real or complex square matrix, polynomial or rational matrix.
• m : real or complex number, the determinant base 10 mantissae
• e : integer, the determinant base 10 exponent

Description

det(X) ( m*10^e is the determinant of the square matrix X .

For polynomial matrix det(X) is equivalent to determ(X) .

For rational matrices det(X) is equivalent to detr(X) .

References

det computations are based on the Lapack routines DGETRF for real matrices and ZGETRF for the complex case.

Examples

x=poly(0,'x');
det([x,1+x;2-x,x^2])
w=ssrand(2,2,4);roots(det(systmat(w))),trzeros(w)   //zeros of linear system
A=rand(3,3);
det(A), prod(spec(A))
 
  

See Also

detr ,   determ ,  

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