Another problem is that the symbol\\ doteq should not be used when an inner product is expressed as a sum of coordinate products, as currently done in many places--although the terms in the sum depend on the basis set, the expression itself does not.
Another problem is that the symbol\\ doteq should not be used when an inner product is expressed as a sum of coordinate products, as currently done in many places. Although the terms in the sum depend on the basis set, the expression itself does not.