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27 commits

Author SHA1 Message Date
sheaf 01fdd9a126 Improve robustness of quadratic equation solver 
Based on ideas from the paper
  "The Ins and Outs of Solving Quadratic Equations with Floating-Point Arithmetic"
    (Frédéric Goualard, 2023)

Could still be improved further, but I think this is acceptable for now.
 2024-04-21 14:19:37 +02:00
sheaf b70f7ba133 Add mechanisms to log envelope equation data 2024-02-19 16:46:09 +01:00
sheaf 6b658acedd Restructure project & update bounds 2024-02-17 13:58:40 +01:00
sheaf 52420a1169 experiment: FMA backend for interval arithmetic 
also includes the start of a way to observe which equations
are being solved, which should help with improving the performance of
the interval Newton method
 2023-03-12 19:15:58 +01:00
sheaf cd6b7368f8 Update cabal.project for GHC 9.6 2023-02-09 17:53:25 +01:00
sheaf 6945aac704 improve show instances 2023-01-20 17:42:17 +01:00
sheaf 25d738b252 more WIP with TH now 2023-01-20 16:34:04 +01:00
sheaf ba07fce595 don't use avx512 in rounded-hw 2023-01-14 03:22:04 +01:00
sheaf a4e9c1cf32 preparation for interval arithmetic 2023-01-13 06:32:34 +01:00
sheaf 066a4e653f more GHC 9.4 build fixes 2022-12-04 17:25:44 +01:00
sheaf bcd38ed791 clean up build steps & instructions 2022-12-04 15:52:29 +01:00
sheaf c80fdac30a switch to using eigen instead of hmatrix 2022-06-17 16:21:52 +02:00
sheaf 64e45f126b Refactor module hierarchy, use internal records 2022-02-11 22:05:13 +01:00
sheaf 5ff935b4b2 update render & select for new brush manipulation 2021-05-24 17:37:26 +02:00
sheaf c3bcce58a7 use ?self to address pointer ownership warnings 2021-04-25 01:59:15 +02:00
sheaf 1b0382f3b0 Switch to GTK4 2021-04-21 15:08:33 +00:00
sheaf b32499cc68 GHC 9.0 compatibility 2021-02-23 13:16:26 +01:00
sheaf 393ef6f06e Implement programmable brush framework 2020-11-12 17:34:46 +00:00
sheaf a5ba7dcd33 use haskell-gi bugfix to improve tab reordering 2020-09-26 00:21:49 +02:00
sheaf 7e8c2e10d1 add document history & undo/redo 2020-09-10 18:59:14 +02:00
sheaf 07c789ccc3 easier install instructions, using openblas 2020-09-08 17:49:47 +02:00
sheaf 44c41d49e0 disable warnings for hmatrix dependency 2020-09-07 16:03:26 +02:00
sheaf 8a6b4f5391 encode/decode documents to JSON using waargonaut 2020-08-31 22:28:30 +02:00
sheaf b3941a2834 use hmatrix for least squares solving 
* this fixes the convergence problems of cubic Bézier curve fitting
 2020-08-26 00:41:34 +02:00
sheaf 9fc7b8acb3 basic rendering, mousewheel scrolling 2020-08-10 16:38:27 +02:00
sheaf f224c6b738 add MenuBar 2020-08-05 22:23:16 +02:00
sheaf c9e702e660 WIP 2020-08-04 08:43:25 +02:00