M-FILES USING SUBPLOT AND SURFC COMMANDS IN MATLAB?

Question

Let f (x, y) = 2^2 + xy +y^4 . Write an M-file that uses subplot to generate a 1 x 2 array of plots with the following specifications.
a)The left plot should use SURFC to generate a plot of the graph of the expression z= f (x, y) and the contours over the following region defined by:
b) -–1 ≤ x ≤ 1 and –1 ≤ y ≤ 1 . Use a 25 by 25 grid. Display grid lines, labels on all axes, and a title that includes the formula for the function. (Use a multi-line title if necessary.)
b)The right plot should:
i) display the default contour plot of over the square [-1,1] by [-1,1] using a 25 by 25 grid, with labels on all contour lines.
ii) add five additional contours at levels between 0 and 0.5
iii) label the additional contours using clabel.
iv) include labels on the axes and a title
c) Does the function have any maximum or minimum values in the domain [-1,1] by [-1,1] ?
If so, use either the Data Cursor or the coordinate grid to estimate the x and y values at the maximum/minimum points. Specify these estimates in a comment line in your M-file.

Answer 1

The site below gives you some examples for plotting in 2D and 3D. It does not solve your homework, but it helps you understand several basic concepts on Matlab plotting.



I suggest you give it a look...

Answer 2

Matlab Surfc

Answer 3

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