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Adding a second layer to a 2D matrix

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Alex Flores
Alex Flores 2017-4-16
回答： Image Analyst 2017-4-16
I have having issues with trying to figure out how to add a second layer to a 2d matrix. I created a 4x4 matrix of random integers from -10 to 10. Now I have to add a second layer to the matrix so that it is 4x4x2. The new layer needs to be all zeros and it has to be done within one line of code. I have tried several things but nothing seems to work. Thanks in advance!

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Image Analyst
Image Analyst 2017-4-16
Try cat(3,...)
newMatrix = cat(3, old2DMatrix, second2DLayer); % Will be 4x4x2
Use your own variable names, needless to say.

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