MACD零下金叉小公式－（大道至简可用于 超跌反弹选股 源码）

DIFF := EMA(CLOSE,12) - EMA(CLOSE,26);
DEA  := EMA(DIFF,9);
零下金叉:IF(DIFF<0 AND DEA<0 AND CROSS(DIFF,DEA),50,0); 可用于选股,或者直接观察

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