| It assumes an invariant average wavelength in the denominator of the integrand. |
| Because of the nature of the integrand, v may represent any spectral variable. |
| Any quadrature formula that uses only a finite number of samples of the integrand might fail if the samples are not representative. |
| Importance sampling involves evaluating the integrand at independently sampled realizations from a probability distribution that is roughly proportional to the integrand. |
| Because of the nature of the integrand, it may represent any spectral variable. |
| The approximation of the integral is most accurate if the lattice points lie in the high-density region of the integrand. |
