v1.0.0-dev0

The first build to try: everything below under 1.0.0 is in it, along with what came since. It is a preview, so expect rough edges, and please report what you find.

New since the plan below was written:

• Python functions in a sheet: bt := use "beam_tools.py", then bt.moment(12 kN/m, 6 m). Units come from the function's annotations (q: "kN/m"). Typing bt. lists the functions, and hovering shows their signature and docstring. A sheet asks before it runs a Python file.
• Units in symbolic results: q*L^2/8 → 54000 N·m, with the units checked.
• Tables with Excel-style cell references (B5, B2:B6), and a grid editor that pastes from Excel.
• Printing and PDF export, with selectable, searchable text; headers and footers with page numbers.
• Pictures in the sheet: insert, paste, resize.
• Data and numerics: curve fitting and interpolation, reading data files (CSV, text, Excel), eigenvalues, FFTs, ODE solvers, optimisation (Minimize, Maximize), temperatures in °C and °F.
• Numbers in other bases: 0x1F, 0o17, 0b101.
• Matrices can be resized after they are made (Ctrl+M inside one).
• Importing .xmcd worksheets is much more complete: controls, data tables and spreadsheet components come in as their values, and results are checked against the values saved in the files.

The first public version.

• Math that looks like math: type on a free-form page and get real fractions, roots, sums, matrices and programs, with an insertion cursor that works on the structure, not on text. A toolbar for those who prefer buttons.
• Real units everywhere, checked and converted: 12 kN/m · (6 m)²/8 = 54 kN·m.
• Arrays, ranges and programs: loops, conditions, local variables, try … on error.
• Solving: root(f, x), solve blocks (given … find), numeric derivatives and integrals.
• Symbolic evaluation: simplify, expand, differentiate, integrate, limits, series, factor, solve (systems too), Laplace, Fourier and z-transforms, with SymPy built in (desktop versions).
• X-Y plots with units and a second axis.
• Pages: A4 or letter, page breaks, collapsible areas.
• Files you can read: worksheets are Markdown, readable on GitHub and diffable, with results cached in the file.
• Export to Markdown and LaTeX; copy equations as LaTeX or as MathML for Word.
• Import of .xmcd worksheets.
• Portable Windows version: a zip to run from any folder, nothing installed.
• AI-ready: an MCP server, in the app and from the command line, so Claude and other AI assistants can read, check and edit worksheets.
• The beermat command line: evaluate, check, export and import from scripts.
• Update check: a quiet note in the status bar when a new version is out (Help → Check for updates at startup turns it off).