The other fundamental vector operation is multiplication by a number.

另一个基本向量运算是乘一个数。

All right, so back to vector edition and multiplication by numbers.

好了 回到向量编辑和数字乘法。

But the reason I bring it up here is that it hints at the fact that the ideas of vector edition and multiplication by numbers will play an important role throughout linear algebra.

但我在这里提到它的原因是它暗示了这样一个事实 即向量变换和数字乘法的概念将在线性代数中发挥重要作用。