Will Tradewave be able to send buy/sell orders with Bitfinex's new, "feature"?
For all pairs on Bitfinex we use 5 significant digits. When BTCUSD rises past 1,000 this results in one less decimal position. For a price below 1,000 there ar 2 decimals, for example $987.65 (2 decimals, five significant figures) for prices above 1,000 this results in 1 decimal, for example $1023.4 (1 decimal, still five significant figures). The rationale behind this is that the higher an amount is the less relevant the number of decimals becomes. vice versa is also true for very small amounts it is important to have more precision. Using significant digits provides a uniform method in always keeping the same level of precision, regardless of high prices -- like now in BTCUSD -- or in low prices like in ETCBTC. For reference: https://en.wikipedia.org/wiki/Significant_figures