[向量] 向量該寫成小括號還是中括號
中學時
課本與學校老師與補習班
向量都寫成小括號
像xi+yj+zk=(x,y,z)
不過上大學
助教說一定要用中括號
請問一下 原文書也都用中括號
想請問一下 小括號是錯誤寫法嗎?
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