How it works

The premise

FixedFlow is a web calculator for fixed-point (Q-format) math. It shows conversions, range, resolution and the rounding error you’ll really get. I wrote it because doing this by hand while writing DSP firmware is slow and easy to get wrong.

There’s also an analyzer that runs a whole calculation through several formats at once and charts the error against floating point, so you can pick a format before you write the code.

What’s included

Q-format conversion showing range, resolution and rounding error side by side

A multi-variable analyzer with charts, compared against a floating-point reference

Runs entirely in your browser, with no backend and no sign-up

How it’s built

FixedFlow is built on TypeScript, React, Vite and Tailwind CSS.

The repository is 99% TypeScript by volume.

It carries 13 commits since Apr 2026, most recently changed in Apr 2026.

How the work is done

Every project here starts as a written spec, and the spec stays the source of truth once there’s code. The repository keeps a build plan with current status, an append-only decision log of where the code departed from the plan, and a handoff document that describes where things stand, including the unfinished parts.

That’s how one person keeps this many projects moving, and it’s what this page is written from.

Current state

In development. Being worked on now.

The source is public, so you can check anything on this page against it.