冬令营记事之八

上午朱全民讲了方程组的解法,讲到了LU分解,似乎不实用,高斯的一个例子还是错的.下午自由游览市区,我和JRZ从人民公园晃到了一个会展中心(似乎还要过去),到了某个过街天桥后回去了,半路上还去了一个化学试剂店看了半天~最后乘58回南山中学.晚上会餐,有人K歌,LRJ唱得还不错.明天就要测试了~
BY MOBILE

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