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What could be the issue with the analytic function?
Posted 2020年9月18日 GMT-4 06:13 Parameters, Variables, & Functions 2 Replies
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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))
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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".
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Hi Alexis,
That'd be really helpfull. I'll try that out. Thank you so much.