> >Say I have some Lucrative, value 1550 units. > > > >Do I sort of gve you the 1550 and you give me a new one, change, or can i > >"split up" my 1550 one into smaller, uh, sections? > > I think Patrick has adopted the method used by Digicash: binary value > coins > (1,2,4,8,16...). Not very intuitive for most people but it allows simpler > optimization for change in your purse. Keeping correct change and getting > it when needed will, by default, be handled automatically for the user. > > In your example 1550 units could be held in your purse as 1024 + 512 + 8 + > 4 + 2. I'm not sure how he intends to handle fractional amounts but it > could certainly be done using binary decimals.
Lucrative DBIs are composed of digital coins of preset value: each coin belongs to a series with a predetermined value per coin. A set of series related by asset, unit, and issuer but with varying amounts allows for the easy creation of change. For example, a mint operator might setup coin series like this: Issued by | Asset | Unit | Amount f-gold | gold | gram | 1000.0 f-gold | gold | gram | 100.0 f-gold | gold | gram | 10.0 f-gold | gold | gram | 1.0 f-gold | gold | gram | 0.1 f-gold | gold | gram | 0.01 With a decimal system like this it's easy for humans to see the minimal number of coins necessary: 1550 grams of gold would be 1 x 1000, 5 x 100, 5 x 10. However, since you're likely to want to make spends like "20.5", your digital wallet will probably contain many more coins than minimally necessary, maybe something like this: 15 x 100, 3 x 10, 10 x 1, and a bunch of 0.1 and 0.01 left over. As Steve notes, the client can be expected to handle most of the details for the user. Lucrative is technically agnostic to the coin division system. A mint operator can use decimal, hex, binary, or any combination of those or an arbitrary system like 1, 5, 25, 50, 100. The Purse uses an iterative modulus to make change. A digital coin can't be "split" into smaller-value pieces by a user, but the Mint can provide exchange services (and this is implemented in Lucrative). Patrick --- You are currently subscribed to e-gold-list as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED] Use e-gold's Secure Randomized Keyboard (SRK) when accessing your e-gold account(s) via the web and shopping cart interfaces to help thwart keystroke loggers and common viruses.
