How to define recursive functions similar to loops in the components of COMSOL

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I want to define a value that changes over time, which requires calling the value of the previous time step. The variable formula is as follows: d(t)=d(t-1)*t+4. At present, I still haven't found a solution, and I hope you can provide guidance. Thanks


2 Replies Last Post 2024年6月25日 GMT-4 03:55
Edgar J. Kaiser Certified Consultant

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Posted: 1 week ago 2024年6月17日 GMT-4 09:16

Check this blog contribution: https://www.comsol.com/blogs/using-the-previous-solution-operator-in-transient-modeling

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Check this blog contribution: https://www.comsol.com/blogs/using-the-previous-solution-operator-in-transient-modeling

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Posted: 9 hours ago 2024年6月25日 GMT-4 03:55

Thank you very much for your help, thank you

Thank you very much for your help, thank you

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