Skip to content
You must be logged in to sponsor fredrik-johansson

Become a sponsor to Fredrik Johansson

@fredrik-johansson

Fredrik Johansson

fredrik-johansson
Bordeaux, France

I develop free and open source mathematical software. Donations are welcome as a sign of support and will also help pay for expenses such as website hosting, domain names, hardware and occasional travel that I otherwise cover out of my own pocket.

Current sponsors 1

@AndrewVSutherland
Past sponsors 3
@kimwalisch
@dginev
@PeterLuschny

Featured work

  1. fredrik-johansson/fungrim

    Fungrim: the Mathematical Functions Grimoire

    Python 119
  2. fredrik-johansson/flint

    My copy of FLINT -- please use https://github.com/flintlib/flint/ for development

  3. fredrik-johansson/midi

    🎵 Open source MIDI music 🎵

Learn more about sponsoring developers and organizations.

Report abuse

Select a tier

$ a month

Choose a custom amount.

$5 a month

Select

Small donation.

$10 a month

Select

Big donation.

$20 a month

Select

Huge donation.

$50 a month

Select

Giganormous donation.

$100 a month

Select

Preposterous donation.

$200 a month

Select

Extravagant donation.

$500 a month

Select

When you really want to part with your money.

$1,000 a month

Select

For any would-be billionaires.