Practice Overwriting Variable (1.4.2) - Tutorial lessons

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What was the original value of variable x if you set x = 10; and then overwrite it with x = x - 2;?
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Consider the first assignment.
Question 2.
What is the command used to suppress output in MATLAB?
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Think about what happens at the command line.
3Question 3.
What do we use to suppress output in MATLAB?
- Comma(,)
- Semicolon(;)
- Parentheses()
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Think about how you want to keep your command window clean.
4Question 4.
True or False: Overwriting a variable in MATLAB will permanently delete its previous value.
- True
- False
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Consider the implications of variable management.
Question 5.
You start with a variable n = 10;. Write a MATLAB command to overwrite n with the result of n decreased by 3. What is the final value?
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Consider the operation of subtraction.
Question 6.
Create a MATLAB script snippet that initializes a variable, overwrites it, and outputs the result without showing intermediate outputs.
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Make sure to use semicolon to suppress output for the intermediate steps.

5 more questions in this section. Enroll free to practise them all.