Radical Pie @RadicalPieMath
The professional equation editor with drawing and annotation tools. radicalpie.com Joined November 2025-
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Version 1.15 of the Radical Pie equation editor has been released. This version includes MathML export, auto subscripting in chemistry mode, and fine control over number layout. This is a free upgrade for all users.
From a Microsoft engineer. bsky.app/profile/kirill…
Heh, Michael Penn invented a new notation for "almost an element of" in this video, so of course I added it to the math font in the next version of Radical Pie.😀 youtube.com/watch?v=NNmLoc…
Radical Pie runs just fine under Wine for Mac.
If you're on faculty at a university and you'd like to have a free academic version of Radical Pie that works through the end of 2026 for your entire department, then please email me at [email protected] from your institution account. radicalpie.com
Version 1.14 of the Radical Pie equation editor has been released. This version includes a new monospace style, control over dotless base symbols, new matrix element vertical alignment options, and a few additions to the Radical font. This is a free upgrade for all users.
Version 1.13 of the Radical Pie equation editor has been released. This version includes a couple new usability conveniences. This is a free upgrade for all users.
Do you use the equation editor built into Microsoft Word? If so, you can put an end to your suffering by upgrading to Radical Pie. radicalpie.com
In a PET scan, radioactive fluorodeoxyglucose (FDG) decays with a half-life of 110 minutes by emitting positrons from the fluorine-18 atoms. An image is generated by detecting the gamma rays produced when each positron annihilates an electron. #RadicalPie
Version 1.12 of the Radical Pie equation editor has been released. This version contains some major new chemistry features that were used to construct the diagrams below. This is once again a free upgrade.
Version 1.11 of the Radical Pie equation editor has been released. This version contains a new way to automatically set some design parameters, an option to shift the math axis upward, and more additions to the Radical font. This is once again a free upgrade.
Version 1.10 of the Radical Pie equation editor has been released. This version contains several miscellaneous improvements that include new symbol typesetting options, embedded TeX in SVG files, more keyboard shortcuts, and additions to the Radical font.
Version 1.9.2 of the Radical Pie equation editor has been released. This version contains a couple small improvements. This is a free upgrade for all users.
A bob suspended by a spring in a viscous fluid has an equation of motion whose solution is an exponentially decaying cosine function around an equilibrium position. #RadicalPie
Version 1.9.1 of the Radical Pie equation editor has been released. This version contains several miscellaneous small improvements and obscure bug fixes. This is a free upgrade for all users.
Version 1.9 of the Radical Pie equation editor has been released. Recent improvements to PowerPoint have made it possible to include some OLE support for PowerPoint in this version of Radical Pie. This is a free upgrade for all users.
Radical Pie 1.8 was released today, and it includes the ability to parse LaTeX. If you have a big equation already written in LaTeX, then you can just copy/paste the plain text into the editor, and Radical Pie will lay it out visually. radicalpie.com
Version 1.8 of the Radical Pie equation editor has been released. This version includes the ability to parse LaTeX code when it's pasted into the editor and have it laid out as an equation. This is a free upgrade for all users.
Just for fun, I recreated this table from Algebra Etc. in Radical Pie with default settings. Took about 5 minutes. The following SVG was saved by Radical Pie, and it can be reopened for editing as an equation. radicalpie.com/TrigTable.svg
Trig / inverse trig composition table, with outline of proofs
Version 1.7 of the Radical Pie equation editor has been released. This version includes several spacing enhancements and adds even more new symbols to the Radical font. This is a free upgrade for all users.
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