25 Feb
2010
25 Feb
'10
6:44 p.m.
Eric wrote: << Does the operation going from 178 to 7 have a name (other than "modulus 9 digitsum")?
Besides "digital root", it's also known as the remainder mod 9. --Dan ________________________________________________________________________________________ "Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read." --Groucho Marx