如何将两行或两列相乘? [英] How to multiply two rows or columns?

问题描述

a = [1, 2, 3];
b = [3, 2, 1];
c = a * b;

收益

错误:运算符*:参数不一致(op1为1x3，op2为1x3)

error: operator *: nonconformant arguments (op1 is 1x3, op2 is 1x3)

为什么不能将这两个相同大小的行相乘? 我不需要为此运行一个for循环，但是我不知道另一种方式...

Why can I not multiply these two rows of the same size? I shouldn't have to run a for loop for this, but I don't know of another way...

我看到了第1.2.3节，这(至少对我而言)表明我应该能够做到.

I saw section 1.2.3 here, which indicates (to me at least) that I should be able to do it.

推荐答案

我现在看到有一个.*运算符.我不知道在文档中哪里可以找到它，而它确实可以满足我的需求.

I see now that there is a .* operator. I did not know where to find that in the documentation, and it does what I want.

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