# How to multiply vector to create a matrix? [closed]

There might be related posts but so far I'd not been able to find them:

u={u1,u2,u3}
v={v1,v2,v3}


where $$u$$ and $$v$$ are two column vectors. I want to use $$u\times v^T$$ to create a matrix, where $$\times$$ represent matrix multiplication, and $$v^T$$ represent the transpose of the $$v$$, which was a row vectors.

Is there any easy way to do that? I have tried Matrixform, array, .,$$\times$$/Cross[] functions, but so far non of them worked.

• Outer[Times, u, v] – march Oct 7 '19 at 4:04
• For long, numerical vectors, KroneckerProduct[u,v] is usually faster. – Henrik Schumacher Oct 7 '19 at 13:38

Use Outer[Times, u, v]. See Outer.
Transpose[{u}].{v}