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 Jun 25, 2024, 3:55 a.m. EDT
Edgar J. Kaiser Certified Consultant

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Posted: 1 month ago Jun 17, 2024, 9:16 a.m. EDT

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: 3 weeks ago Jun 25, 2024, 3:55 a.m. EDT

Thank you very much for your help, thank you

Thank you very much for your help, thank you

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