what should be the dimension of matrix to be multiplied with a $4\times 1$ matrix so that i can get a $2 \times 1$ matrix ?
To make it clear: $\left(\fbox{?}\times\fbox{?}\right)\left(4\times 1\right) = 2\times 1$.
what should be the dimension of matrix to be multiplied with a $4\times 1$ matrix so that i can get a $2 \times 1$ matrix ?
To make it clear: $\left(\fbox{?}\times\fbox{?}\right)\left(4\times 1\right) = 2\times 1$.