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MB_87176311-Visitor
1-Visitor
July 7, 2024
Question

PDE solve block with integral

  • July 7, 2024
  • 2 replies
  • 989 views

Hello,

 

i'm trying to solve a system of PDE's with one equation that contains an integral in space.

i  expect that the parameter "is" will be constant in space - but its not...

i'm using prime 10,

 

can you please help me?

 

thanks,

Matan

2 replies

W
Werner_E25-Diamond I
25-Diamond I
July 7, 2024

Haven't looked in detail, so I can't provide a solution.

But I noticed that it gets worse when we increase the precision

Werner_E_0-1720388512200.png

Here is what your function looks like in 3D

Werner_E_1-1720389407387.png

The spikes in the red line (is(x,0.5)) can't be seen because they are very tiny (0,004 at max) and the z-axis in the 3D plot is scaled from -6000 to 3000.

Here is what we see when we scale it from -0.001 to 0.005

Werner_E_2-1720389877136.png

So I am not sure, but what we see may be "just" numerical artefacts/inaccuracies.

 

 

V
vnamboodheriCommunity Manager
Community Moderator
July 16, 2024

Hello @MB_8717631, 

 

It looks like you have a response from a community member. If it helped you answer your question please mark the reply as the Accepted Solution. 

Of course, if you have more to share on your issue, please let the Community know so other community members can continue to help you.

Thanks,
Vivek N.
Community Moderation Team.

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