For example, 12.5 × 10−9 m can be read as "twelve-point-five nanometers" and written as 12.5 nm, while its scientific notation equivalent 1.25 × 10−8 m would likely be read out as "one-point-two-five times ten-to-the-negative-eight meters".
Por exemplo, 12,5×10-9 pode lerse como "doce con cinco nanómetros" e escribirse 12,5 nm, mentres que a notación científica equivalente 1,25×10-8 leríase "un con vinte e cinco por dez elevado a menos oito metros".