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http://funyakofunyao.click/2018/12/12/numpy%e3%81%a7%e7%b8%a6%e3%83%99%e3%82%af%e3%83%88%e3%83%ab%e3%82%92%e4%bd%9c%e3%82%8b/
【python備忘録】numpyで縦ベクトルを作る