isletter true false
1 view (last 30 days)
Show older comments
How does isletter work here. Is it the value 1 that makes it executable and the value 0 that makes it not excecute and go to else?
0 Comments
Accepted Answer
per isakson
on 15 Oct 2011
isletter is a function, which returns a logical value. The logical values, true and false, are displayed as 1 and 0, respectively by Matlab. Test by running
class( isletter('a'))
Thus, you may read "if true" execute the if-clause else execute the else-clause.
0 Comments
More Answers (2)
Wayne King
on 15 Oct 2011
I don't see isletter() in what you've posted. I see an if statement based on the output of menu()
The menu() call you show outputs a 1,2,or 3 based on what the user selects. 1 for Cheese, 2 for Shroom, and 3 for Sausage.
If the user were to simply kill the figure window, then output would be 0.
2 Comments
the cyclist
on 15 Oct 2011
Wayne, you need to scroll down a bit to see the relevant section he is asking about.
the cyclist
on 15 Oct 2011
Basically, yes. "1" is a representation of the boolean "true", and "0" is a representation of the boolean "false". So, "if 1" means "if true", and the statement executes accordingly.
See Also
Categories
Find more on File Name Construction 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!