# The Heat Equation & Stability

*Module of the free GPU.js GPGPU course · 5 tasks*

Why a correct-looking simulation explodes — the step-size limit, and the implicit step that ignores it.

## Tasks

1. [One Explicit Step](https://gpu.rocks/learn/heat-and-stability-514063bb/1.md)
2. [Cross the Line](https://gpu.rocks/learn/heat-and-stability-514063bb/2.md)
3. [Sixteen Step Sizes at Once](https://gpu.rocks/learn/heat-and-stability-514063bb/3.md)
4. [Solve, Don’t Step](https://gpu.rocks/learn/heat-and-stability-514063bb/4.md)
5. [Stable Is Not Accurate](https://gpu.rocks/learn/heat-and-stability-514063bb/5.md)

---

Interactive version: https://gpu.rocks/learn/heat-and-stability-514063bb