MATLAB 면접 질문과 답변
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Ques 21. Explain the concept of handle graphics in MATLAB.
Handle graphics refers to the system in MATLAB where graphical objects (plots, figures, axes) are represented by handles, allowing easy manipulation and customization.
Example:
figure;
plot([1, 2, 3], [4, 5, 6]);
h = gcf;
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Ques 22. How do you concatenate strings in MATLAB?
Strings can be concatenated using square brackets or the 'strcat' function.
Example:
str1 = 'Hello';
str2 = 'MATLAB';
result = [str1, ' ', str2];
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Ques 23. Explain the use of the 'unique' function in MATLAB.
'unique' is used to find the unique elements in an array, and it can also return indices to reconstruct the original array.
Example:
A = [1, 2, 2, 3, 4, 4, 5];
uniqueValues = unique(A);
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Ques 24. What is the purpose of the 'contour' plot in MATLAB?
The 'contour' plot is used to display contour lines of a matrix. It is often used for visualizing 2D scalar fields.
Example:
[X, Y] = meshgrid(-2:0.1:2, -2:0.1:2);
Z = X.^2 + Y.^2;
contour(X, Y, Z);
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Ques 25. Explain the use of the 'subplot' function in MATLAB.
'subplot' is used to create multiple plots in a single figure window. It allows arranging plots in a grid.
Example:
subplot(2, 2, 1);
plot(x1, y1);
subplot(2, 2, 2);
plot(x2, y2);
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