Yaboosh said:
When you guys talk about math trades, it is like you are talking in Arabic. I don't get them at all.
Person A has Yellow; WANTS Purple
Person B has Blue, Red and Green. WANTS to Orange and Yellow
Person C has Purple and Orange WANTS Red and Blue
Person D has Yellow and Orange. WANTS Green and Blue
Magic algorithm spits this result out:
Person A will ship B Yellow and get C's Purple.
Person B will ship C Blue and ship D Green. Recieves A's Yellow and D's Orange.
Person C will ship A Purple. Receives B's Blue.
Person D will ship B Orange. Recieves B's Green.
A got lucky. He wanted Purple and he was able to trade away his Yellow for it.
B got everything he wanted. He initially put up 3 items for trade but he only traded 2 of them away (like it should be).
C only got 1 of the things he wanted.
D also only got 1 of the things he wanted.
Notice that C wanted Red, and there was a Red in the pool. The reason why he didn't get Red is because B would have had to ship out 3 things in total when he only wanted 2 things, which wouldn't be fair to B. Math trades won't rip you off.
Notice here that a lot of people didn't get EVERYTHING that they wanted, BUT they were able to trade their item away and recieve what they want back. You don't have to go to every single person and ask them if they want your Yellow for his Purple. He simply throws the Yellow in the pool and recieves a Purple back.
It isn't always possible to match everyone with what they want, but it is the most efficient way to trade your stuff away and get something that you want. You won't ever be down an item. Every item you ship, you will recieve something that you want in return.
It beats going online and finding someone who will trade you directly. You throw in your unwanted item and you get something you want back.