cannot call m-file in another m-file

Hi everyone!

I'm trying to call a m-file (I named it as 'trycall') in another m-file (I named it as 'callnow'),

in trycall I write:

y = 2x + 3;

in callnow I write:

clc
clear

x = 10;
trycall;
z = y;

this is what I get when I ran the code:

Error: File: trycall.m Line: 1 Column: 6
Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To
construct matrices, use brackets instead of parentheses.

Error in callnow (line 5)
trycall;

I save them both in the same directory (I save them in Desktop).

I don't have any idea what I do wrong. What am I supposed to do?

Any help would be appreciated. Thank you! Have a good day.

[Stephen23]

"I don't have any idea what I do wrong. What am I supposed to do?"

Read the error message: "Check for missing multiplication operator..."

[Bertiningrum Devi]

thank you!

Answer 1

[Walter Roberson]

y = 2x + 3;

2x is not a valid variable name in MATLAB, and it is not a valid way to write a number in MATLAB.

Like the error message said, "Check for missing multiplication operator"

[Bertiningrum Devi]

my goodness... thank you!