@Test public void divideColumns() { DMatrixRMaj original = RandomMatrices_DDRM.rectangle(4,4,-1,1,rand); DMatrixRMaj v = new DMatrixRMaj(new double[][]{{0.5},{0.75},{2},{0.9}}); T _A = convertA(original); alg.divideColumns(v,_A); DMatrixRMaj A = convertB(_A); for (int row = 0; row < 4; row++) { for (int col = 0; col < 4; col++) { assertEquals(original.get(row,col)/v.data[col],A.get(row,col), UtilEjml.TEST_F64); } } }