/**
* 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);
}
/** 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);
}