error using 256x256matrix

A=[2 4 5 3
 6 8 9 2
5  1 3 4 ];

A_1_10 = A(:,:,ones(10,1));
k = nchoosek(1:9,3);
k2 = k(all(diff(k,1,2)>1,2),:)
k3 = k2(1:floor(size(k2,1)/10):end,:)
A_1_10(bsxfun(@plus,k3(1:10,:),(0:9:9^2).')) = 0

i get answer for this

nut for 256x256 i am not getting the answer in which some values must be replaced by zero

Answer 1

[Andrei Bobrov]

A=[2 4 5 3
 6 8 9 2
5  1 3 4 ];

n = numel(A);
m = 10;
t = 4;

A_1_10 = A(:,:,ones(m,1));
k = nchoosek(1:n,t);
k2 = k(all(diff(k,1,2)>1,2),:)
k3 = k2(1:floor(size(k2,1)/m):end,:)
A_1_10(bsxfun(@plus,k3(1:m,:),(0:n:n*(m-1)).')) = 0

[FIR]

Yes andrei,but one thing is that ,i get only 4 zeros,if i take 256x256 matrix i need atleast 60-70 zeros,please help

[Andrei Bobrov]

t = 60;

[FIR]

Andrei my system returns out of memory wen i give t=60,