Question

MATLAB 里二维数组怎么变成三维数组

Answer 1

A = rand(81,81,81);
n = 20;
A1 = A(:,:,n); % 81*81 二维
A2 = A(:,n,:); % 81*1*81 三维
A3 = A(n,:,:); % 1*81*81 三维

% 将三维转为 81*81 二维
A22 = reshape(A2,81,81);
A32 = reshape(A3,81,81);