Rydberg therefore rewrote Balmer's formula in terms of wavenumbers, as n = n 0 − 4 n 0 m 2 {\displaystyle \textstyle n=n_{0}-{4n_{0} \over m^{2}}} .
Rydberg reescribiu entón a fórmula de Balmer, en termos de números de onda, como n = n 0 − 4 n 0 m 2 {\displaystyle \scriptstyle n=n_{0}-{4n_{0} \over m^{2}}} .