Saving Multiples Variable of a function

I have some codes that i make

function result = back_prop(W1,W2,W3, A1,A2,A3, T_Input, Output)

dim_A = size(T_Input)

m = dim_A(2)

dZ3 = A3 - Output.'

dW3 = 1/m * dot_mult_dif_dim(dZ3, A2.')

db3 = 1/m * np_sum(dZ3)

dZ2 = dot_mult_dif_dim(W3.', dZ3).*(1 - A2.^2)

dW2 = 1/m * dot_mult_dif_dim(dZ2, A1.')

db2 = 1/m * np_sum(dZ2)

dZ1 = dot_mult_dif_dim(W2.', dZ2).*(1 - A1.^2)

dW1 = 1/m * dot_mult_dif_dim(dZ1, T_Input.')

db1 = 1/m * np_sum(dZ1)

end

where dot_mult_dif_dim and np_sum is a function that i make my own,

how can i save or access dZ3, dW3, db3, dZ2, dW2, db2, dZ1, dW1, and db1 ? each of them are matrix

i want to use them to update some parameters in NN, thank you

[yoel y]

for uppdating the parameters, it will be like this

W1 = W1 + αdW1

and it also apply for other variables

Answer 1

[Asad (Mehrzad) Khoddam]

If you want to use the variables in the other function, use this command in both functions:

global dZ3 dW3 db3 dZ2 dW2 db2 dZ1 dW1 db1