using contour plot to solve the problem

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Dai Nguyen
Dai Nguyen 2021-3-14
评论： Dai Nguyen 2021-3-16
Hi I want to use contour plot to find the minimum dimension of a can with the volume of 315, but I don't know how to do it. I'm sorry I'm pretty new to matlab
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Adam Danz
Adam Danz 2021-3-14
Yes, in the case of derivation, a smooth surface might be better than the 2D grid I suggested in my answer.

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Adam Danz
Adam Danz 2021-3-14
编辑：Adam Danz 2021-3-15
I assume you have an n-by-m matrix of costs for n heights and m radii.
I'd use heatmap or imagesc to create a gridded color display where x is can heights, y is radii (or the other way around) and the colorbar defines the cost.
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Dai Nguyen
Dai Nguyen 2021-3-16
yes it will cost about a quarter to produce 1 meter, the dimension that I calculate to minimize the cost but still keeping the same volume is 4.645m for both height and radius

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