how to calculate product of two 3D matrices (both 101 by 101 by 101 ) in matlab ?

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Let u be the 3D (101 by 101 by 101) matrix. I have to calculate u^2.

回答(3 个)

Hassaan
Hassaan 2024-2-3
编辑:Hassaan 2024-2-3
For a 3D matrix, there's no standard matrix multiplication operation.
Assuming you want to square each element of a 3D matrix:
% Generate a 3D matrix u of size 101x101x101 with dummy data
u = rand(101, 101, 101); % For example, using random numbers
% Calculate u^2 element-wise
u_squared = u .* u;
% Display some of the squared values to verify
disp(u_squared(1:2, 1:2, 1:2)); % Display a small portion to check
(:,:,1) = 0.5614 0.7014 0.2341 0.0030 (:,:,2) = 0.1137 0.7113 0.3022 0.0026
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Matt J
Matt J 2024-2-3
u=randi(10, 3,3,2)
u =
u(:,:,1) = 3 9 3 10 2 7 6 10 7 u(:,:,2) = 6 2 5 7 8 1 6 3 4
u.^2
ans =
ans(:,:,1) = 9 81 9 100 4 49 36 100 49 ans(:,:,2) = 36 4 25 49 64 1 36 9 16

Walter Roberson
Walter Roberson 2024-2-3
u^2 is not defined for 3D matrices.

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