コード例 #1
0
  /**
   * Checks to see if the matrix is or is not modified as according to the modified flag.
   *
   * @param decomp
   */
  public static void checkModifiedInput(DecompositionInterface decomp) {
    DenseMatrix64F A = RandomMatrices.createSymmPosDef(4, new Random(0x434));
    DenseMatrix64F A_orig = A.copy();

    assertTrue(decomp.decompose(A));

    boolean modified = !MatrixFeatures.isEquals(A, A_orig);

    assertTrue(modified + " " + decomp.inputModified(), decomp.inputModified() == modified);
  }
コード例 #2
0
  /** Performs a decomposition and makes sure the input matrix is not modified. */
  public static boolean safeDecomposition(DecompositionInterface decomp, DenseMatrix64F A) {

    DenseMatrix64F A_orig = decomp.inputModified() ? A.copy() : A;

    return decomp.decompose(A_orig);
  }