Which of the following MATLAB selection statements is logically equivalent to the following code snippet? if y > 55 x = 55; if y > 44 x = 44; if y > 33 x = 33; end
Which of the following MATLAB selection statements is logically equivalent to the following code snippet? if y > 55 x = 55; if y > 44 x = 44; if y > 33 x = 33; end
Computer Networking: A Top-Down Approach (7th Edition)
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Chapter1: Computer Networks And The Internet
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Question
Matlab
Transcribed Image Text:The image presents a multiple-choice question regarding MATLAB code snippets. The question asks which of the given selection statements is logically equivalent to the provided code snippet:
### Original Code Snippet:
```matlab
if y > 55
x = 55;
if y > 44
x = 44;
if y > 33
x = 33;
end
```
### Answer Choices:
- **a.**
```matlab
if y > 55
x = 55;
else
if y > 44
x = 44;
else
if y > 33
x = 33;
else
x = 33;
end
end
end
```
- **b.** None of the choices is correct.
- **c.**
```matlab
if y > 55
x = 55;
else if y > 44
x = 44;
else if y > 33
x = 33;
end
end
```
- **d.**
```matlab
if y > 55
x = 55;
else
if y > 44
x = 44;
else
if y > 33
x = 33;
end
end
end
```
This question challenges the reader to understand nested conditional statements and how they affect the logical flow of a program. The structure of branching in code snippets is critical for determining the output based on different values of `y`.
Transcribed Image Text:**Equivalent MATLAB Switch Statement Question**
Which of the following MATLAB `switch` statements is logically equivalent to the following code snippet?
```matlab
if y == 33
x = 33;
elseif y == 44
x = 44;
elseif y == 55
x = 55;
else
x = 0;
end
```
**Options:**
(a)
```matlab
switch y
case 33
x = 33;
case 44
x = 44;
case 55
x = 55;
end
```
(b)
```matlab
switch y
case 33
x = 33;
case 44
x = 44;
case 55
x = 55;
otherwise
x = 0;
end
```
(c)
```matlab
switch y
case 33
x = 33;
case 44
x = 44;
```
**Explanation:**
The `switch` statement in MATLAB allows you to execute different code blocks based on the value of a variable, similar to an `if-elseif-else` structure. The equivalent switch statement to the given code snippet will need to include an `otherwise` clause to handle the case where `y` is not 33, 44, or 55.
Thus, the correct option is (b).
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