- Sat, 14:03: 住处没有无线真是不方便。于是第一件大宗商品竟然是无线路由器，WGR614要34元。然
后在书店买了些地图之类。沿着密歇根路，从千年公园向北走到了尽头。周五人很多！商店 的种类与国内很不一样，不知道是不是该与北京路相比。
My tweets
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2020
Last time I wrote a review was in 2018, about 2017. Or maybe I wrote something elsewhere, maybe on Twitter? It was hard to write something freely…
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#thotcon badge?
[root@m4700 ~]# esptool write_flash 0x00000 /home/yuan/tracking/thotcon0x9/tc0x9.bin esptool.py v2.3.1 Connecting.... Detecting chip type...…
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Portfolio weighted averages
Last week I got an assignment to make a small Java library for some often used portfolio calculations. A portfolio is a collection of holdings, each…
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