Function definitions are not permitted at the prompt or in scripts

Can't we embed function on our script? Must be at different one and just call them?

[Stelios Fanourakis]

why is that?

[Stephen23]

"Function definitions are not permitted at the prompt or in scripts"

The message seems quite clear to me: your version of MATLAB does not let you define a function inside a script, or in the command prompt. From version R2016b it is possible to define a function in a script.

Answer 1

[Christoph F.]

You can use anonymous functions from the command line (or in a script). Compared to named functions, they are quite limited, though.

Example:

myfun = @(x) x.^3-2*x.^2+x-1
myfun(0:5)

Answer 2

[Jan]

 Can't we embed function on our script?

Yes. Defining functions in script files was introduced in 2016b. If you have an older version, this does not work - exactly as the message tells you.

 Must be at different one and just call them?

Yes. Or do not use a script file at all, but a function. In function files, the definition of subfunctions is allowed.