159   Deep Learning

一,向量点积(数量积):求做功

1,点积公式:

 

728da9773912b31b2215893f8018367adab4e1af

 

2,物理意义:

 

 

QQ图片20170903192727

 

 

二,向量乘积(向量积):求面积

1,乘积公式:
d058ccbf6c81800a87beb908b93533fa828b4758

 

2,物理意义
480px-Cross_product_parallelogram.svg



Leave a Reply

Your email address will not be published. Required fields are marked *