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Please note that the recommended version of Scilab is 6.0.1. This page might be outdated.
See the recommended documentation of this function

Scilab help >> Linear Algebra > det

det

determinant

Calling Sequence

det(X)
[e,m]=det(X)

Arguments

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 — polynomial determinant
  • determ — determinant of polynomial matrix
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Last updated:
Thu May 12 11:44:14 CEST 2011