数量积是什么意思-数量积的词语解释-相关组词-词语-近音词-同音词 - 掌上跨屏通词语词典

题目

更新时间：2025-01-12 18:17:19

求解答，词语数量积是什么意思？再说说数量积有什么含义？

答案

数量积的词语解释

数量积[ shù liàng jī ]

又称“内积”、“点积”，物理学上称为“标量积”。两向量a与b的数量积是数量。a。·。b。cosθ，记作a·b；其中。a。、。b。是两向量的模，θ是两向量之间的夹角（0≤θ≤π）。

数量积的词语组词

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数量积的相关词语

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