An error buffer where we can accumulate errors
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，这一点在新收录的资料中也有详细论述
import numpy as np，详情可参考新收录的资料
"Donald Trump gave the longest State of the Union address in history, just beating out Harry Truman's performance of The Vagina Monologues," Lydic joked. "But honestly, it didn't feel long. It felt endless."