# KdV (1D) using Freefem++

**URL:** <https://community.freefem.org/t/kdv-1d-using-freefem/1120>\
**Category:** General Discussion\
**Created:** [July 26, 2021, 7:30pm UTC](https://community.freefem.org/t/kdv-1d-using-freefem/1120 "2021-07-26T19:30:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Pitagoras1](https://avatars.discourse-cdn.com/v4/letter/p/58956e/32.png) [@Pitagoras1](https://community.freefem.org/u/Pitagoras1)\
**Post date:** [July 26, 2021, 7:31pm UTC](https://community.freefem.org/t/kdv-1d-using-freefem/1120/1 "2021-07-26T19:31:00Z")

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Hi,

Could anyone tell me where I can find some results programmed in Freefem++ for KdV in 1D?

Best regards.

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**Author:** ![Qianrui](https://avatars.discourse-cdn.com/v4/letter/q/9fc348/32.png) [@Qianrui](https://community.freefem.org/u/Qianrui)\
**Post date:** [June 26, 2022, 12:32pm UTC](https://community.freefem.org/t/kdv-1d-using-freefem/1120/2 "2022-06-26T12:32:40Z")

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Hello, I was also thinking about reproducing an instance of KdV, but the result was always wrong. My procedure is as follows. If it is convenient for you, please help me look at the reasons. Thank you.  
[KDVnew.edp](https://community.freefem.org/uploads/short-url/iM91fsCObhbSfj4L81EqioGsWEL.edp) (1.2 KB)