Examples of org.ejml.alg.dense.misc.DeterminantFromMinor

org.ejml.alg.dense.misc.DeterminantFromMinor

Computes the determinant of a matrix using Laplace expansion. This is done using minor matrices as is shown below:

|A| = Sum{ i=1:k ; a_ij C_ij }

C_ij = (-1)^i+j M_ij

Where M_ij is the minor of matrix A formed by eliminating row i and column j from A.

This is significantly more computationally expensive than using LU decomposition, but its computation has the advantage being independent of the matrices value.
@see org.ejml.alg.dense.decomposition.lu.LUDecompositionAlt @author Peter Abeles


        int width = 10;


        DenseMatrix64F A = RandomMatrices.createRandom(width,width,rand);


        DeterminantFromMinor minor = new DeterminantFromMinor(width);
        double minorVal = minor.compute(A);


        LUDecompositionAlt alg = new LUDecompositionAlt();
        alg.decompose(A);
        double luVal = alg.computeDeterminant();

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Related Classes of org.ejml.alg.dense.misc.DeterminantFromMinor

org.ejml.alg.dense.decomposition.lu.TestLUDecompositionBase

org.ejml.data.DenseMatrix64F

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