syntax error in if else if block
2 views (last 30 days)
Show older comments
how to write else if condition with multiple inputs
else if condition is throwing an error.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1698936/image.png)
1 Comment
Infinite_king
on 20 May 2024
Edited: Infinite_king
on 20 May 2024
Can you share the exact error message ?
Answers (2)
Hassaan
on 20 May 2024
Edited: Hassaan
on 20 May 2024
% Number of inputs: 3
% If expression (e.g., u1 ~= 0):
u1 == 1
% Elseif expressions (comma-separated list, e.g., u2 == 2, u3 == 3):
(u2 == 2) && (u3 == 3)
% Show else condition:
Ensure that each condition within the Elseif expressions field is properly formatted using logical operators like && (AND) or || (OR).
Separate multiple elseif expressions with commas, if there are more than one.
Here’s the corrected entry based on your input:
If expression:
u1 == 1
Elseif expressions:
(u2 == 2) && (u3 == 3)
Ensure there are no extra spaces or unbalanced parentheses.
Double-check variable names and ensure they match the input names used in your Simulink model.
-----------------------------------------------------------------------------------------------------------------------------------------------------
If you find the solution helpful and it resolves your issue, it would be greatly appreciated if you could accept the answer. Also, leaving an upvote and a comment are also wonderful ways to provide feedback.
It's important to note that the advice and code are based on limited information and meant for educational purposes. Users should verify and adapt the code to their specific needs, ensuring compatibility and adherence to ethical standards.
Professional Interests
- Technical Services and Consulting
- Embedded Systems | Firmware Developement | Simulations
- Electrical and Electronics Engineering
Feel free to contact me.
Aman
on 20 May 2024
Hi Maya,
You are getting this error because the square brackets and '&&' are not allowd in IF block. The allowed opertators are <, <=, ==, ~=, >, >=, &, |, ~, ( ), unary-minus. So the modified equation as per this would be as below.
(u2==2) & (u3==3)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1698946/image.png)
I hope this helps!
2 Comments
See Also
Categories
Find more on Startup and Shutdown in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!