size of output of fully connected layer and size of input in matlab

In MATLAB, the size of the output of a fully connected layer can be calculated using the following formula:

main.m
outputSize = inputSize * numNeurons
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Where inputSize is the size of the input to the layer and numNeurons is the number of neurons in the layer.

For example, if the input to the layer has a size of 10 and the layer has 5 neurons, then the output size will be:

main.m
outputSize = 10 * 5
outputSize = 50
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To get the size of the input to the fully connected layer, you can use the size function in MATLAB. For example, if your input data is stored in a matrix X, then the size of the input will be:

main.m
inputSize = size(X, 2)
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This will return the number of columns in the matrix X, which corresponds to the size of the input to the fully connected layer.