How do I solve the double integral determined by the surface z=4x^2-y^2 over the rectangular region created by the coordinates (0,0),(4,0),(0,3) and (4,3) in the xy-plane?

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trudy rea 2021-7-1

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https://ww2.mathworks.cn/matlabcentral/answers/870258-how-do-i-solve-the-double-integral-determined-by-the-surface-z-4x-2-y-2-over-the-rectangular-region

评论： Walter Roberson 2021-7-2

采纳的回答： Chunru

How would I solve this?

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Chunru 2021-7-2

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https://ww2.mathworks.cn/matlabcentral/answers/870258-how-do-i-solve-the-double-integral-determined-by-the-surface-z-4x-2-y-2-over-the-rectangular-region#answer_738103

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You can do a numerical integration:

z = integral2(@(x, y) 4*x.^2 - y.^2, 0, 4, 0, 3)
z = 220.0000

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trudy rea 2021-7-2

I tried doing the function it is not working properly.

Walter Roberson 2021-7-2

在 MATLAB Online 中打开

z = integral2(@(x, y) 4*x.^2 - y.^2, 0, 3, 0, 4)

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How do I solve the double integral determined by the surface z=4x^2-y^2 over the rectangular region created by the coordinates (0,0),(4,0),(0,3) and (4,3) in the xy-plane?

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How do I solve the double integral determined by the surface z=4x^2-y^2 over the rectangular region created by the coordinates (0,0),(4,0),(0,3) and (4,3) in the xy-plane?

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