Why do I get the error ' Unrecognized function or variable A'?

Here is the code that I used. How can I resolve this issue?

Answer 1

[KALYAN ACHARJYA]

You have to pass the input arguments to the function.

Please refer the following link to understand "How to the call function" or refer any tutorial.

https://in.mathworks.com/help/matlab/ref/function.html

[Kyla Marie Pabalan]

I already tried the following:

• A = [ ];
• A equals specific values

Although variable A was recognized, I still got the wrong answer.

[Stephen23]

"Although variable A was recognized, I still got the wrong answer."

Because your code does not return the expected outputs.