MATLAB - Numerical Methods
What is the output of this MATLAB code?
x = linspace(1, 4, 4);
y = x .* 2;
y
What is the output of this MATLAB code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Generate vector x
linspace(1,4,4) creates [1 2 3 4].Step 2: Multiply each element by 2
Element-wise multiplication x .* 2 results in [2 4 6 8].Final Answer:
[2 4 6 8] -> Option AQuick Check:
Multiply each x element by 2 [OK]
Quick Trick: Element-wise operations use .* for vectors [OK]
Common Mistakes:
- Using * instead of .* for element-wise multiplication
- Confusing linspace output
- Assuming vector is squared
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