piecewiselinear by sgreben
tiny linear interpolation library for go
About piecewiselinear
From the project's README at github.com/sgreben/piecewiselinear. Lightly cleaned for readability; for the full source see the upstream repo.
[](http://godoc.org/github.com/sgreben/piecewiselinear) [](https://goreportcard.com/report/github.com/sgreben/piecewiselinear)
A tiny library for linear interpolation. per evaluation for control points (and in a special case). Get it Use it Fast special case Benchmarks Get it Use it Fast special case
If the control points are uniformly spaced, is much faster (no search required):
func main() { f := piecewiselinear.FunctionUniform{Y: []float64{0, 1, 0}} // range: "hat" function f.
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 28 | github.com/sgreben/piecewiselinear |
| GitHub forks | 4 | github.com/sgreben/piecewiselinear |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 7.5 years | since Oct 2018 |
| Last commit | 2.4 years ago | Dec 10, 2023 |
| Releases shipped | 2 | last: 2.4 years ago |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Replaces these paid SaaS
piecewiselinear is one of the open-source alternatives to:
Ready to self-host piecewiselinear?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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