How to remove unrecognized function or variable error

I definded the variable but in a function the same variable is not readable. How to overcome this issue.

[Torsten]

Most probably, you defined the variable after defining the function or the variable is not visible in the function. But we must see your code to be sure what's going wrong.

Answer 1

[Voss]

https://www.mathworks.com/help/matlab/matlab_prog/share-data-between-workspaces.html