The Hindu-Arabic Numerals c8.35

c8.35

The name of this all-important symbol also demands some attention, especially as we are even yet quite undecided as to what to call it. We speak of it to-day as *zero*, *naught*, and even *cipher*; the telephone operator often calls it *O*, and the illiterate or careless person calls it *aught*. In view of all this uncertainty we may well inquire what it has been called in the past.⁵