A positional number system has one unique digit for each integer from zero up to, but not including, the radix of the number system.
Əmik ən numération ən ugišawan ihan amaɗin iyandǎɣ ye hak amaɗin əmdan ən wala har, mašan dǎɣ wariha, radix ən əmik wan numération.