Error trying to use Nested Functions: Not shared Variable

Hello,

I'm currently trying to write my script using Nested Functions in the aim to use less memory space with the inputs-variables calls.

And so, when I'm calling my parent function, it returns me: "Error using cumsum CUMSUM supports only numerical or logical inputs."

and in fact, I'm using cumsum(A) where A is normally the result of my Nested function, but it doesn't seem to operate because A doesn't appear in the workspace... I've tried to create A=[] before calling the Nested function but it didn't change any thing.

Does someone know what could be the problem please ?

Thank you in advance and have a nice day,

Eric

Could someone tell me if the anterior way of writing it is a convenient structure please

[Walter Roberson]

"I'm currently trying to write my script using Nested Functions in the aim to use less memory space with the inputs-variables calls."

When you pass a variable into a function, the corresponding variable in the called function shares memory with the original, unless you modify the variable inside the function (in which case a duplicate of the original is made and the duplicate is changed.)

Therefore, using shared variables only saves memory if the shared variable is modified -- but if it is modified then all references to the shared variable acquire the new value, which destroys software encapsulation and typically makes it much harder to understand the code.