Diag
diag(input, diagonal=0, out=NULL) -> Tensor
If
input
is a vector (1-D tensor), then returns a 2-D square tensor with the elements ofinput
as the diagonal.If
input
is a matrix (2-D tensor), then returns a 1-D tensor with the diagonal elements ofinput
.
The argument diagonal
controls which diagonal to consider:
If
diagonal
= 0, it is the main diagonal.If
diagonal
> 0, it is above the main diagonal.If
diagonal
< 0, it is below the main diagonal.