[julia-users] Re: Linear algebra question (shift rows to the right)

[Tomas Lycken]

I don’t think that’s implemented as a function. It’s pretty trivial to do, 
though:

function shift_to_upper_triangular(A::Matrix)
    ret = zeros(A)
    for i in 1:size(A,1)
        for j in i:size(A,2)
            ret[i,j] = A[i,j-i+1]
        end
    end
    ret
end

// T

On Tuesday, October 6, 2015 at 10:43:19 AM UTC+2, Alex wrote:

Sorry if it's out of topic of the group. 
>
> What is the name of the operation which makes transformation : 
>
> [a b c; d e f; g h t] -> [a b c; 0 d e; 0 0 g] 
>
> It shifts rows to the right and fills left trailing values by zeros. 
>
​