with(combinat); 

L:=permute([1$(n*(n-1)/2), 0$(n*(n-1)/2)], n*(n-1)/2);

Error, (in combinat:-permute) 2nd argument must be a non-negative integer

what is $ in permute?

let m3 = [[0; 1; 0]; [1; 0; 1]; [0; 1; 0]]

1. Firstly, express this matrix into sequence function expression

2. how to express this matrix in terms of forloop code

3. for complicated case such as 1 is not in easy pattern, can it intelligently express the matrix in terms of for loop code

is there exist extra tools to express matrix in terms of for loop code or sequence function code?

http://en.wikipedia.org/wiki/Hypersurface

http://people.cs.uchicago.edu/~niyogi/papersps/surfacesampling.pdf

hypersurface is a homogenous polynomial

f(x,y) = 0

i do not understand how sampling hypersurface can generate this kind of polynomial

how do minor generate 2*2 matrix from 5*5 matrix or n*n matrix which n >= 3

first case is the symmetric or nonsymmetric ladder matrix which fill full upper right and lower left corner

{0,1,1,1,1}
{1,0,1,1,1}
{1,0,0,0,1}
{1,1,1,0,0}
{1,1,1,1,0}

second case is overlap two different first case , one is 1 and another is 0 which is for display partial fill the upper right corner and lower right corner

{0,1,0,0,0}
{1,0,1,1,0}
{1,0,0,0,1}
{0,1,1,0,0}
{0,0,0,1,0}