@Override public Matrix solve(Matrix B, Matrix X) { if (!(X instanceof DenseMatrix)) throw new UnsupportedOperationException("X must be a DenseMatrix"); checkSolve(B, X); double[] Xd = ((DenseMatrix) X).getData(); X.set(B); intW info = new intW(0); LAPACK.getInstance().dgtsv(numRows, X.numColumns(), offDiag.clone(), diag.clone(), offDiag.clone(), Xd, Matrices.ld(numRows), info); if (info.val > 0) throw new MatrixSingularException(); else if (info.val < 0) throw new IllegalArgumentException(); return X; }
@Override public Matrix solve(Matrix B, Matrix X) { if (!(X instanceof DenseMatrix)) throw new UnsupportedOperationException("X must be a DenseMatrix"); checkSolve(B, X); double[] Xd = ((DenseMatrix) X).getData(); X.set(B); intW info = new intW(0); LAPACK.getInstance().dgtsv(numRows, X.numColumns(), offDiag.clone(), diag.clone(), offDiag.clone(), Xd, Matrices.ld(numRows), info); if (info.val > 0) throw new MatrixSingularException(); else if (info.val < 0) throw new IllegalArgumentException(); return X; }
@Override public Matrix solve(Matrix B, Matrix X) { if (!(X instanceof DenseMatrix)) throw new UnsupportedOperationException("X must be a DenseMatrix"); checkSolve(B, X); double[] Xd = ((DenseMatrix) X).getData(); X.set(B); intW info = new intW(0); LAPACK.getInstance() .dgtsv(numRows, X.numColumns(), subDiag.clone(), diag.clone(), superDiag.clone(), Xd, Matrices.ld(numRows), info); if (info.val > 0) throw new MatrixSingularException(); else if (info.val < 0) throw new IllegalArgumentException(); return X; }
@Override public Matrix solve(Matrix B, Matrix X) { if (!(X instanceof DenseMatrix)) throw new UnsupportedOperationException("X must be a DenseMatrix"); checkSolve(B, X); double[] Xd = ((DenseMatrix) X).getData(); X.set(B); intW info = new intW(0); LAPACK.getInstance() .dgtsv(numRows, X.numColumns(), subDiag.clone(), diag.clone(), superDiag.clone(), Xd, Matrices.ld(numRows), info); if (info.val > 0) throw new MatrixSingularException(); else if (info.val < 0) throw new IllegalArgumentException(); return X; }