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After some search, I find the most clear description of steemit reward formula. It's at Steem Centor. The links are: PS: I am not creator of these contents.

I will use 3 SBD to buy upvote from smartsteem for this post and see how it works out. This is the result

By permutation, we mean a one to one and onto map from a finite set to itself. Say the set contains n elements and labeled from 0 to n-1, we can denote a permutation by a length n array a with unique elements

【胖哥说币】那些正在来袭的去中心化交易所 This post gives info about decentralized exchange technology and platform including bitshares, etherdelta, 0x and others . Some coin/token may be worth investing. DEXBot bitshares

Performance metrics of top cryptocurrencies in 2017 In 2017 we see huge price rise for cryptocurrencies. Here I will give some performance metrics to summary these huge changes. Price Data We consider

Paradox and Fallacy in Statistics luoq08@gmail.com Paradox A veridical paradox produces a result that appears absurd but is demonstrated to be true nevertheless A falsidical paradox establishes a result