i isomorphisms

isomorphisms

What I’m working on:

the programming keyboard we always needed
programs that run on the cheapest phone available on Amazon: the $60 Miro.A1
fun math interactions
a "pensieve" browser which saves what you intend to read, to disk
playing with compilers, assembly, and language front-ends. Can we get rid of API’s entirely in this new world?
rewriting favorite cli tools to compile with a smaller tool chain, owned by me
hooking cli tools up to the rest of the operating system! McElroy told us to do this; the Plan9 team pushed everything-is-a-file further, but with a networking focus that's not so important to me. AOSP has a different goal set but can also be adapted.
seeing if proper dimensional accounting can prevent a class of errors in CNC G-code
using LMs’ ability to translate to bootstrap insights into code quality
trying to tame the slop
focusing on readability above all else
make programs small and fast
validating names with vector models
kernel mods! there is no API anymore!
multiply indexing files with vectors
hacking assembly to make sure SVM is really easy
renaming things so they don't continue to be called what they aren't

Programs

Spinor

Spinor 0.0.1-pre.1 — prerelease — MIRO A1 APK · MIRO C67 APK · Release notes and checksums · Source

Rotate through 2π, then 4π. Video.

Visual construction: Jason Hise. Spinor's rotating central body, six attached belts/ribbons, and their untwisting over a 720° turn closely follow Hise's original six-belt Belt Trick animation and 96-strand Antitwister. This is an independently coded implementation of Hise's distinctive visualization, not a claim to have invented it or the older mathematical belt trick. Hise's explanation · Entropy Games · Detailed attribution.

Wegert

Wegert Android test 0.1.50 — prerelease — Download APK · Release notes and checksum · Source

Mathematical visualization: Elias Wegert. This independently coded Android app explores complex functions with phase portraits, following Wegert's Visual Complex Functions: An Introduction with Phase Portraits. The app does not claim to have originated his approach. Wegert and Gunter Semmler, later joined by Pamela Gorkin and Ulrich Daepp, produced the original Complex Beauties calendars (2011–2024), including the complete 2024 calendar (PDF).

Move zeros and poles. Watch the phase portrait change. Video.

Algebraic Variety Explorer

Source

Original renderer: Christian Stussak. This Android adaptation reuses his Java jsurf ray tracer, written for IMAGINARY's SURFER at the Mathematisches Forschungsinstitut Oberwolfach. The ray-tracing engine and polynomial rendering were Stussak's work; this project supplies a phone interface and packaging, not a new renderer. Original jsurf source · Apache-2.0 attribution.

Graph real zero sets in three variables. Video.

Accelerometer

Accelerometer native 0.2.0 — Download APK · Release notes and provenance · Source

A DEX-free ARMv7/Thumb app. Sensor code · Replay.

Pauli

Orbital visualization from spherical harmonics. Thanks to Dean Dauger for Atom in a Box. Source.

Turntable of a fixed 2pₓ orbital using Pauli's native CPU renderer (camera motion, not orbital-state rotation). Video.

Fourier Voice / Florence Nightingale

Writing the simplest programs: microphone → Fourier mathematics → graphics, exploring the phone's hardware abstraction layer (HAL), tiny native executables, and a no-libc target. Today's source uses AAudio and libc—not direct access to the vendor HAL. Florence Nightingale's 1890 voice is a repeatable offline movie input, not a live microphone recording. Movie · Source · Minimal microphone/HAL experiment.