Revision sheets

Summarise your course in blocks (definition, theorem, method, example…) next to your course PDF, type formulas with the assistant, and get a dense, readable sheet ready to print. Then revise it or export it to LaTeX and Anki. Your sheets stay in your browser.

How do I make a revision sheet?

Structure it: add a chapter, sections, then blocks. Each block has a type (Definition, Theorem, Property, Method, Example, Warning…) that gives it its frame and label. The level (high school or university) chooses which types come first.
Write: type text directly; **bold**, *italic*, “- ” at the start of a line for a list. Formulas go between $ $ inline, between $$ $$ for a displayed formula.
Use the formula assistant (∑ button): palettes for sets and logic, analysis, linear algebra, arithmetic, complex numbers, probability, structures and symbols; a maths keyboard, editable LaTeX code, a formula sheet (usual expansions, derivatives, trigonometry…), recent and favourite formulas. A badly written formula is flagged in red.
Set the layout: portrait or landscape, 1 to 3 columns, font size, margins, spacing. “Fit on N pages” shrinks the font until the sheet fits. The A4 preview updates live.
Print with “Print / PDF” (choose “Save as PDF” to get a file). Hide a block or chapter (👁) to leave it out.

Working next to your course PDF

The Course PDF button shows your course PDF next to the sheet, without uploading it. Select a sentence, then “Insert into the block” to copy it; formulas extracted from a PDF are often garbled, so retype them with the ∑ assistant. Capture an area turns a rectangle drawn on the PDF (a figure, a table) into an image in the sheet.

Images can also be pasted directly (Ctrl+V, for example a screenshot) or dropped into a block. The 🖼 button crops them, sets their width and adds a caption.

Revising and exporting

Revise: block contents are hidden and only titles stay visible. Try to remember, show the answer, then mark “I knew it” or “To review”; you can then review only the missed blocks, shuffled.
LaTeX (File menu): a complete document with the same boxes and the images, to compile with pdflatex or Overleaf. Your macros are expanded.
Anki (File menu): each block becomes a card (title on the front, content on the back, formulas included), to import into Anki with File › Import.

Summarising a course well

One idea per block: a statement, a method, a pitfall. Short blocks fit columns better.
Full statements: copy the hypotheses of theorems; they are what people forget most.
Minimal examples: a short example beats a copied proof.
Pitfalls as “Warning”: classic mistakes stand out when you reread.

Frequently asked questions

Are my sheets uploaded to a server?

No. Sheets are saved in your browser, on this device. To switch computers or share a sheet with a classmate, use “File” then “Save the .fiche file”, and open that file on the other device.

Do I need to know LaTeX?

No: the maths keyboard and palettes are enough. If you know LaTeX, type it directly between $ $ and define your own macros in the settings (for example \R = \mathbb{R}).

How do I fit my sheet on a single page?

Switch to 2 or 3 columns, reduce the margins, then tick “Fit on 1 page”: the font shrinks automatically, down to 6.5 pt. If it still does not fit, the preview says so: shorten it or spread it over two pages.

Can I organise a whole course?

Yes: create one sheet per subject or course, with as many chapters as you need. The outline on the left and the search help you find your way, and “Each chapter on a new page” separates chapters when printing.

Formulas: KaTeX and MathLive (MIT licences); PDF: pdf.js (Apache 2.0 licence); archives: JSZip (MIT licence).