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                ``` ;|函數名稱:????????XD::Vec:vxv 調用格式:????????(XD::Vec:vxv??v1?v2) 參數說明:????????v1?------?向量 v2?------?向量 返回值:????????向量 函數簡介:????????向量叉積 函數來源:????????原創 函數作者:????????marting 適用版本:????????不限? 最后更新時間:????????2017-06-05 備注:????????向量--?用點表示 向量叉積的幾何意義:等于垂直于兩向量確定平面的的向量|; (defun?XD::Vec:vxv?(?v1?v2?)?? (list??? ?(-?(*?(cadr?v1)?(caddr?v2))?(*?(cadr?v2)?(caddr?v1)))?? ?(-?(*?(car??v2)?(caddr?v1))?(*?(car??v1)?(caddr?v2)))??? (-?(*?(car??v1)?(cadr??v2))?(*?(car??v2)?(cadr??v1)))?? )) ```
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