# Multiply $1\times 3$ matrix by corresponding numbers

For example, I want to this to happen: $$\begin{bmatrix}1& 2& 3\end{bmatrix}\times\begin{bmatrix}2& 3& 4\end{bmatrix} = \begin{bmatrix}2& 6& 12\end{bmatrix}$$ It's not exactly matrix multiplication, but I hope you can see what I'm getting at. Is there some notation in linear algebra that allows this function to be valid?

• Use MathJax to clarify your ideas. – Mythomorphic Aug 15 '16 at 8:02
• – ayhan Aug 15 '16 at 9:39

This page uses the notation $\circ$ for the Hadamard product.
I don't know any standard matrix operation of this kind. You can rewrite the three entries of the $1\times 3$ matrices as diagonal elements of a $3 \times 3$ matrix, than perform the standard matrix multiplication.