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Double integration in simulink

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mahmood hassan
mahmood hassan 2018-1-29
编辑： Jesus Velazquez 2018-2-7
Kindly guide me When I am doing double integral of constant 10 with time 10 sec it gives the result of 500 but when I am solving it by hand it gives the result of 1000. I am solving it as ---> integral_0^10 integral_0^10 10 dx dy = 1000 Images of solution and simulink is attached
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mahmood hassan
mahmood hassan 2018-2-3
Hi, May you guide me when I am doing a double integration of step function having properties (initial value =10, final value =5, step time =5) over total time = 10s.
why it does not gives the result of
result = 5 int_0^5 x dt + 10 int_5^10 x dt
result = 5x^2/2 + 10x^2/2
result = 62.5+375=437.5
But result in simulink is 312.5.
I will be thankful to you.
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Jesus Velazquez
Jesus Velazquez 2018-2-7
编辑：Jesus Velazquez 2018-2-7
That one is a bit more complicated

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回答（1 个）

Sean de Wolski
Sean de Wolski 2018-1-29
integral2(@(x,y)10+zeros(size(x)), 0, 10, 0, 10)
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mahmood hassan
mahmood hassan 2018-1-30
I want to do double integral by simulink not by coding. kindly explain about the difference in Answer of double integral by simulink and by hand as shown in pix

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