User Guide

Overview

Two web modules are ready to use — no install and no account required. Math content stays in your browser unless you copy or download it. See the privacy policy.

Get started

1. From the homepage, open Formula editor or Interactives — or use the links above.
2. Use the waffle (grid) menu in the app to switch modules or return to site pages.
3. Editor: click “开始编辑” (Start editing) on the welcome screen, type in the LaTeX bar, or load from the left library.
4. Interactives: pick a lesson in the catalog, use controls under the canvas, and read the lesson notes and hints.

Switching modules

The app launcher has two groups:

• Apps: Formula editor (write · LaTeX), Interactives (for class & home)
• Site: Home, Blog, About, User Guide (this page)

The brand mark returns to the NovaMath homepage. The legacy path /app/ redirects to the editor.

Note: in-app UI strings are currently Chinese-first. This English guide maps the same screens and workflows.

Formula editor

Open the formula editor. Layout: top bar, left formula library, center canvas, bottom LaTeX bar, and a style/export footer.

UI regions

Welcome screen

When the formula is empty, the canvas shows a welcome screen with three paths:

1. Click Start editing, or type in the LaTeX bar
2. Pick a template from the left formula library
3. Insert symbols and structures from the top toolbar categories

The welcome screen hides once there is content, and can reappear after you clear the formula.

Template toolbar

Categories live in the top bar. Click a category to expand; click again to collapse. Searching hides the tabs and shows cross-category matches. Empty search shows “暂无匹配符号或模板”.

Main categories:

• Symbols — operators, relations, sets, logic, arrows, Greek, calculus symbols, fences, …
• Fractions — display / small / slash forms
• Scripts, Roots, Integrals (including definite and contour)
• Large operators (sums, products, …), Brackets (pairs, bars, piecewise, …)
• Trig, Accents (vec, hat, …), Limits & log, Operators, Matrices

Inserts place structures with placeholders so you can fill numerators, limits, and so on.

Formula library

About 138 static formulas: primary 28, junior 46, senior 36, university 28. Default band is primary. Filter by level and search by name or LaTeX (“搜索公式...”).

• Clicking an entry replaces the current formula (it does not append).
• No matches → “暂无匹配公式”.
• Typical use: load a close skeleton, then change numbers and symbols.

WYSIWYG and LaTeX sync

The canvas and LaTeX bar share one formula. Edits on either side update the other. Mix these habits:

1. Fully visual — toolbar + keyboard on the canvas
2. Start from code — paste LaTeX into the source bar
3. Fine-tune — edit commands in the source bar and watch the canvas

This is string-level sync with MathLive, not a full TeX engine. Packages such as tikz or mhchem are not supported.

Style and zoom

• Letters / digits — italic and bold checkboxes (written into formula styling).
• Fonts — Times New Roman (default), Arial, Cambria Math, Latin Modern Math.
• Size — Chinese size presets and custom pixels (roughly 8–96).
• Color — picker in the bottom bar.
• Zoom — 25%–200% in the footer (~5% steps); mouse wheel zooms over the canvas.

Export

Paste into Word / PowerPoint equation fields, or wrap with $...$ / $$...$$ in Markdown and many note apps.

Interactives

Open visualization. Left: lesson catalog. Right: canvas, controls, and notes.

UI regions

Browse, search, favorites

1. Default band is junior high (richest catalog).
2. Expand folders and open a leaf lesson marked ready (“可学”).
3. Search across all bands; empty results suggest trying other keywords.
4. Favorites shows an empty state about signing in later — login and favorites are not enabled yet.

Grade bands and coverage

Roughly 70+ interactive lessons, curated by band:

• Primary — number & operations (fractions, percent); measurement (area, volume, clock angles).
• Junior high — fullest set: topic taxonomy (functions, triangles, circles, transformations, …), textbook-mapped folders, classic examples, and exam-style samples. The same lesson may appear under multiple textbook paths.
• Senior high — e.g. sine parameters, exponentials, derivatives & tangents, ellipse/parabola definitions, plane vectors.
• University — e.g. sequence limits, Taylor series, surfaces, vector fields.

“Coming soon” placeholders are supported. If a leaf is not ready, the main panel explains it — pick another lesson in the same section.

Interaction and classroom use

1. Use sliders, readouts, and toggle groups under the canvas.
2. Some lessons allow dragging points; some views support wheel zoom / pan — follow that lesson’s hints.
3. Classroom flow: predict → drag to verify → summarize with the lesson notes.
4. Use Fullscreen to project; Reset to return to the initial state.

Common workflows

Teachers — prep and class

1. Assemble key formulas in the editor via toolbar or library.
2. Switch to visualization for live “what if” demos; use fullscreen.
3. Copy polished LaTeX into slides, handouts, or problem sets.
4. Optionally share editor/viz links in study guides for after-class practice.

Students — homework and notes

1. Load a close formula from the library → change symbols → copy LaTeX into your document.
2. When stuck on a concept, search visualization first, then write the general form in the editor.
3. Use the LaTeX bar for careful edits while watching the canvas.

Using both modules

A common sequence: explore interactively → write the formal equation → export into homework or notes. For lesson prep, draft formulas first, then attach a visualization demo.

Export and reuse

• Available now: copy LaTeX; download formula.tex.
• Not ready: PNG, SVG, PDF, MathML (menu shows coming soon).
• Word / PowerPoint: paste into an equation field or your LaTeX add-in workflow.
• Markdown: inline $a^2+b^2=c^2$; display math with double dollar signs.
• More tips in the blog.

FAQ

Do I need to install or sign up?
No. Use a modern browser.

Is it free?
Yes — the editor and visualization explorer are free to use online.

Is my content uploaded?
Editor and visualization content stay local unless you copy or export. The site may use analytics cookies — see the privacy policy.

Why do PNG / MathML appear in the menu?
They are placeholders. Use Copy LaTeX or download .tex for now.

Why did the library wipe my formula?
Library entries replace the current formula. Copy LaTeX first if you need a draft.

Why are favorites empty?
Favorites and login are not enabled yet.

Is the app UI English?
In-app copy is Chinese-first today. This English guide documents the same screens. Site navigation can switch to English.

Full LaTeX packages?
No. The editor targets common math structures (MathLive + source sync), not a full TeX distribution.

Get help

• Updates and tips: Blog
• Channels: Contact
• Email: liuhengloveyou@gmail.com

If this page disagrees with the live UI, trust the in-app labels; we keep the guide updated as features ship.