Recall & Review
beginner
What does the
+ operator do in MATLAB?The
+ operator adds two numbers or arrays element-wise.Click to reveal answer
beginner
How do you perform element-wise multiplication in MATLAB?
Use the
.* operator to multiply arrays element-wise.Click to reveal answer
intermediate
What is the difference between
* and .* in MATLAB?* is matrix multiplication, while .* is element-wise multiplication.Click to reveal answer
beginner
What operator is used for division in MATLAB?
The
/ operator performs matrix right division. For element-wise division, use ./.Click to reveal answer
beginner
How do you calculate the power of a number in MATLAB?
Use the
^ operator for matrix power and .^ for element-wise power.Click to reveal answer
Which operator performs element-wise addition in MATLAB?
✗ Incorrect
The
+ operator adds elements one by one.What does the operator
./ do?✗ Incorrect
./ divides each element of one array by the corresponding element of another.How do you perform matrix multiplication in MATLAB?
✗ Incorrect
The
* operator performs matrix multiplication.Which operator raises each element of an array to a power individually?
✗ Incorrect
.^ applies power to each element separately.What is the result of
5 + 3 * 2 in MATLAB?✗ Incorrect
Multiplication happens before addition, so 3*2=6, then 5+6=11.
Explain the difference between matrix multiplication and element-wise multiplication in MATLAB.
Think about how you multiply matrices vs. multiplying each number separately.
You got /4 concepts.
Describe how to perform division and power operations element-wise in MATLAB.
Look for the dot before the operator for element-wise.
You got /3 concepts.