How to avoid using a loop here?
显示 更早的评论
Hello. I want to do the same thing without a loop.
A = zeros(N);
for m = 1:N
for n = 1:N
A(m, n) = 2*N + 1 - (m + n);
end
end
采纳的回答
One approach —
N = 5;
tic
[m,n] = ndgrid(1:N);
A = 2*N + 1 - (m + n)
toc
Compare —
tic
A = zeros(N);
for m = 1:N
for n = 1:N
A(m, n) = 2*N + 1 - (m + n);
end
end
toc
A
The nested loops are actually faster!
.
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
