When translated into modern computer arithmetic, the Nepōhualtzintzin amounted to the rank from 10 to 18 in floating point, which precisely calculated large and small amounts, although round off was not allowed.
wˌɛn tɹænslˈeɪɾᵻd ˌɪntʊ mˈɑːdɚn kəmpjˈuːɾɚɹ ɚɹˈɪθmətˌɪk, ðə nˈɛpoʊhjˌuːɐltsˌɪntsɪn ɐmˈaʊntᵻd tə ðə ɹˈæŋk fɹʌm tˈɛn tʊ ˈeɪtiːn ɪn flˈoʊɾɪŋ pˈɔɪnt, wˌɪtʃ pɹɪsˈaɪsli kˈælkjʊlˌeɪɾᵻd lˈɑːɹdʒ ænd smˈɔːl ɐmˈaʊnts, ɔːlðˈoʊ ɹˈaʊnd ˈɔf wʌz nˌɑːt ɐlˈaʊd.