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1.3 KiB
1.3 KiB
Homotopy Continuation in Julia
This is a project for the "Laboratorio Computazionale" exam at the University of Pisa
Implemented
- Total-degree Homotopy with "Roots of unity" start system
- Euler-Newton predictor-corrector method with adaptive step size
- Homotopy Continuation for all roots of the target system
TODO
- Parallelization
- Projective coordinates (maybe)
Example systems
Here's some tests on 2x2 systems, with the plotted real approximate solutions
\begin{align*}
x^2 + y^2 - 4 &= 0 \\
xy - 1 &= 0 \\
\end{align*}
| Single-threaded | Multi-threaded (nproc=8) |
|---|---|
 |
 |
\begin{align*}
x^2 + y^2 - 2 &= 0 \\
xy - 1 &= 0 \\
\end{align*}
| Single-threaded | Multi-threaded (nproc=8) |
|---|---|
 |
 |
\begin{align*}
x^3 + 5x^2 - y - 10 &= 0 \\
2x^2 - y - 10 &= 0 \\
\end{align*}
| Single-threaded | Multi-threaded (nproc=8) |
|---|---|
 |
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