# \#differential-equations

**URL:** https://discourse.threejs.org/tag/differential-equations/1466.md

[Latest](https://discourse.threejs.org/latest.md) · [Categories](https://discourse.threejs.org/categories.md) · [Tags](https://discourse.threejs.org/tags.md)

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## [Wave, img, and gpu](https://discourse.threejs.org/t/wave-img-and-gpu/60526)

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**Author:** [@kritb](https://discourse.threejs.org/u/kritb)\
**Replies:** 1\
**Last updated:** [January 20, 2024, 9:24pm UTC](https://discourse.threejs.org/t/wave-img-and-gpu/60526 "2024-01-20T21:24:23Z")

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Modeling one of my projects from shadertoy. Uses image pixel intensity as a wave’s starting position. https://chrisboligprojects.pythonanywhere.com/shaderWave used a lot from three.js - Port shader with multiple buf…

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## [20,000 points Lagrange Test](https://discourse.threejs.org/t/20-000-points-lagrange-test/59908)

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**Author:** [@kritb](https://discourse.threejs.org/u/kritb)\
**Replies:** 0\
**Last updated:** [January 3, 2024, 6:51pm UTC](https://discourse.threejs.org/t/20-000-points-lagrange-test/59908 "2024-01-03T18:51:15Z")

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L1 and L4 model I made a while ago. Haven’t had the chance to make it mobile friendly. Updates 20,000 3D points (fingers crossed seamlessly) with a rk4 propagator. https://chrisboligprojects.pythonanywhere.com/lagrange …

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## [My recent projects! Electric fields, wave equation, and chaos](https://discourse.threejs.org/t/my-recent-projects-electric-fields-wave-equation-and-chaos/54397)

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**Author:** [@kritb](https://discourse.threejs.org/u/kritb)\
**Replies:** 4\
**Last updated:** [July 29, 2023, 10:57pm UTC](https://discourse.threejs.org/t/my-recent-projects-electric-fields-wave-equation-and-chaos/54397 "2023-07-29T22:57:33Z")

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Models the divergence of a static electric filed. New divergence values form the color map after being solved. Would like to include a Laplacian solver and curl solver. FDM solves for wave approximation. Would like the …

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## [finite difference method for wave equation](https://discourse.threejs.org/t/finite-difference-method-for-wave-equation/52822)

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**Author:** [@kritb](https://discourse.threejs.org/u/kritb)\
**Replies:** 3\
**Last updated:** [June 15, 2023, 4:40am UTC](https://discourse.threejs.org/t/finite-difference-method-for-wave-equation/52822 "2023-06-15T04:40:42Z")

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https://chrisboligprojects.pythonanywhere.com/fdm FDM matrices update the mesh based on user applied energy and initial conditions. Before every animation loop, a color map is applied based on high and low values. Start…