4×4 Array{Int64,2}: 0 1 2 3 1 0 4 5 2 4 0 6 3 5 6 0 a symetric matrix m[i,j] =m[j,i] and m[i,i]= 0
On Fri, Aug 19, 2016 at 3:59 PM, Jeffrey Sarnoff <jeffrey.sarn...@gmail.com> wrote: > Is this what you want, or are you looking for a more general way to > construct nxn matrices like this 4x4 matrix, or something else? > > julia> m = [ [0,1,2,3] [1,0,4,5] [2,3,0,6] [4,5,6,0] ] > 4×4 Array{Int64,2}: > 0 1 2 4 > 1 0 3 5 > 2 4 0 6 > 3 5 6 0 > > > On Friday, August 19, 2016 at 9:01:06 AM UTC-4, Ahmed Mazari wrote: >> >> Yes but it doesn't allow me to set the diagonal to 0 ?? >> >> On Fri, Aug 19, 2016 at 2:55 PM, Michael Borregaard <mkborr...@gmail.com> >> wrote: >> >>> You can build the matrix as normal, then specify that the upper triangle >>> is undefined by >>> mat = LowerTriangular(mat) # where mat is a Matrix of any eltype. >>> >> >>