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Differentiation of electric field

Posted 27 apr 2017, 23:31 GMT-4 Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 5.0 0 Replies

Suyeon Lee
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I want to calculate second derivative of electric field during calculation,

When I use d(d(ewfd.Ex,x)), I always get 0.
I searched about this problem, and this is because electric field is defined for 1st order differentiation in COMSOL.
In forum and blog, I found the way to differentiate for post processing, but I want to differentiate during calculation.
Is there any way to use second derivative?
0 Replies Last Post 27 apr 2017, 23:31 GMT-4
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