[Solved] What will be the output of the following MATLAB code?x = 5; y = 10; save('test.mat', 'x'); clear; load('test.mat'); disp(y); | MATLAB

MATLAB - File I/O

What will be the output of the following MATLAB code?

x = 5; y = 10; save('test.mat', 'x'); clear; load('test.mat'); disp(y);

A10

B5

CError: Undefined function or variable 'y'.

D0

Step-by-Step Solution

Solution:

Step 1: Analyze the save and clear commands
Only variable x is saved. The clear command removes all variables from workspace.
Step 2: Load restores only x, not y
After loading, only x exists. y is undefined, so disp(y) causes an error.
Final Answer:
Error: Undefined function or variable 'y'. -> Option C
Quick Check:
Only saved variables load back; others cause error [OK]

Quick Trick: Only saved variables are restored after load [OK]

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