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  • 多元函数积分学

    book

    August18,2021

    向量的运算 $$ (a\_x,a\_y,a\_z)\cdot(b\_x,b\_y,b\_z)=a\_xb\_x + a\_yb\_y + a\_zb\_z $$ $$ \bold a \cdot \bold b = |\bold a||...

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