Manifold

A document editor for mathematics

Write the mathematics.The typesetting follows.

Formulas render as you type them, Hebrew and English share a paragraph, and the PDF is the page you were looking at.

366 commands, every one explained in English and in Hebrew

1The fundamental theorem

Let f be continuous on [a,b] and let F be an antiderivative of f. Then

∫ f(x) dx = F(b) − F(a)(1)

ולכן, עבור f(x)=x^2 על הקטע [0,1], השטח שמתחת לגרף הוא 1/3.

1

You think about the mathematics.Manifold thinks about the page.

The usual choice

LaTeX by hand, or an editor that shows you everything but the page.

By hand, you see your page after a compile, and a typo stops the compile until you find it from a line number. A structured editor draws the formulas as you type, but where a line ends, where a page breaks and where a figure lands still wait for the PDF. Manifold does both while you write: a mistake shows where you made it, on the real page.

By hand

\begin{theorem}
  Let $f$ be continuous on $[a,b]$. Then
  \[ \intt_a^b f(x)\,dx = F(b) - F(a) \]
\end{theorem}! Undefined control sequence.
l.42   \[ \intt

The typo stops the compile, and the log gives you a line number.

In Manifold

Theorem 1. Let f be continuous on [a,b]. Then
∫ f(x) dx = F(b) − F(a)

The same typo turns red where you typed it, and is fixed as you write.

What it does

Built for papers that have formulas in them.

\frac{1}{3}1/3\sum_{n=1}^\inftyΣ

Formulas as you type them

Type LaTeX or press the keys you already know. The formula draws itself in place, and the caret moves through it the way you expect it to.

Every x has a unique closest point in a closed subspace M.

לכל x יש נקודה קרובה ביותר יחידה בתת־מרחב סגור M.

Two languages in one paragraph

Each paragraph takes its direction from its own first words, Hebrew and English can share a sentence, and every formula reads left to right. There is no switch to set.

Real pages, and the PDF is them

Margins, numbered equations and footnotes at the foot of the page, laid out as you write.

d/dx (x sin x) = sin x + x cos xproduct rule

Calculations, worked step by step

Ask for a derivative, an integral or a limit and get the working, each step naming its rule.

Your papers come with you

Your .lyx files open with their layouts, formulas, tables and figures, and your macros and keyboard shortcuts come along.

Manifold File Edit View Document
Section ⇄ Auto B I U Aa Σ Insert Math Ω Export PDF
OUTLINE
1מרחבי הילברט
1.1Introduction
1.2אי־שוויון בֶּסֶל
(1)
Saved Section 0 words 100% עברית · RTL UTF-8

Hebrew, English and mathematics in one document — the outline following along. This is a recreation of the window, animated.

How it works

From a download to a finished PDF in three steps.

  1. Download and open it

    No account, and nothing else to install for writing. Your documents are files on your own disk.

  2. Write

    Press Ctrl M for a formula, and choose a section, a theorem or a proof from the list. The numbering takes care of itself.

  3. Export

    A PDF that matches the screen, or LaTeX source for anyone who works in LaTeX.

366commands, each explained in both languages
2languages in one paragraph
3systems, and a browser tab
0accounts needed to write

Questions

What people ask before they download.

Is Manifold free?
The editor is free, needs no account, and always will. Keeping documents in your account, sending copies, writing together and the model Manifold hosts are part of a plan, from $10 a month, with a free taste of each.
Do I need to know LaTeX?
No. Structure is chosen from a list and formulas are typed with keys. If you know LaTeX, type it and it renders as you go.
Can I still get LaTeX out of it?
Yes. Export a .tex file whenever you like, with Hebrew handled by XeLaTeX and polyglossia, or export a PDF of the pages on screen.
Will my .lyx files open?
Yes. Layouts, formulas, tables, figures, footnotes and cross references come across, and anything that cannot is named rather than dropped. Your macros and keyboard shortcuts can come along too.
Where are my documents kept?
In a file on your own disk. Nothing you write leaves your computer unless you ask it to.
How well does it handle Hebrew?
Hebrew and English were the starting point. Every paragraph finds its own direction, formulas always read left to right, the interface speaks both languages, and proofreading checks both.
What does it need installed?
Nothing for writing, formulas and LaTeX export. Chromium for PDF export, TeX Live to change a drawing and a local model for writing help are optional: Settings lists what is missing, says what each is for, and installs it for you.
Why does my computer warn me the first time I open it?
The builds are not signed yet, so macOS and Windows ask once. The download page gives the one step that gets past it on each system.
Is there a version for the browser?
Yes. The same editor runs in a tab on a computer, with nothing to install. Phones and tablets are not supported yet.

Free to download, and free to keep writing in.

No account, no trial that runs out, and your files stay on your disk.

Free, with no account. Also for every other system, or in your browser.