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d operator and dtang operator

Posted Aug 10, 2018, 2:13 a.m. EDT General, LiveLink for MATLAB, Modeling Tools & Definitions Version 5.3a 0 Replies

zhao yang
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Hi, is there any one knowing the difference between the operator d(f,x) and the operator dtang(f,x). When I use the d(f,x) operator in COMSOL 5.3a, there is an error. But when I use dtang(f,x) instead, it works out. can someone tell me the difference between these two operators?

0 Replies Last Post Aug 10, 2018, 2:13 a.m. EDT
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Hello zhao yang

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