assertTrue(RangeCol_FAILED, array.size()==2);
assertTrue(RangeCol_FAILED, Closeness.isClose(array.accumulate(), 1.8));
array = mA.rangeCol(0, 0, 3);
assertTrue(RangeCol_FAILED, array.size()==3);
assertTrue(RangeCol_FAILED, Closeness.isClose(array.accumulate(), 2.4));
array = mA.rangeCol(0, 1, 3);
assertTrue(RangeCol_FAILED, array.size()==2);
assertTrue(RangeCol_FAILED, Closeness.isClose(array.accumulate(), 1.4));