Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
What could be the issue with the analytic function?
Posted Sep 18, 2020, 6:13 a.m. EDT Parameters, Variables, & Functions 2 Replies
Please login with a confirmed email address before reporting spam
Hi,
I created an analytic function in the global space with the following expression and tried to plot it. However, it doesn't seem to give the expected graph(Please see the graph produced with Matlab). Could someone kindly explain me what I'm missing here?
Expression: exp(-x^2/w^2)+ exp(-(x-d)^2/(w^2))+ exp(-(x+d)^2/(w^2))
Attachments:
Please login with a confirmed email address before reporting spam
Hello,
Could it be that you are using the x spatial coordinate for your COMSOL plot? Then if you have too few mesh points the sampling is maybe not sufficient at the peak where the function is very sharp.
What you can do to check this is to go into the plot settings and set "Marker" to "circle" and set the sampling from "interpolated" to "In data points".
Please login with a confirmed email address before reporting spam
Hi Alexis,
That'd be really helpfull. I'll try that out. Thank you so much.