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Maths you can write, solve and keep.
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PlaygroundWrite by handWrite an equation with a finger, pen or mouse, see it typed, then find roots, plot or differentiate it.Start tour →PlaygroundShapes, symbols and screenshotsInsert menus that work like an office app: shapes and arrows, maths symbols, screenshots and equations.Start tour →Notes StudioNotes made of blocksText, headings, formulas and callouts. Type / to add any block, then share with a key or export to PDF.Start tour →Notes StudioQuizzes, solvers and sketchesPut a live solver, a quiz or a hand-drawn sketch inside a note, so revision answers back.Start tour →AlgorithmsFind the right methodSearch every method across five units, run one right there, or open its full page.Start tour →AlgorithmsLearn a method, step by stepGauss–Seidel from the idea to the answer: formula, worked example, iteration table, graph and export.Start tour →SettingsMake it yoursSwitch between light and dark (the background looks its best in dark) and find your way around the menu.Start tour →
ProfileSoonYour profileYour saved pages, notes and finished tours in one place. Its tour arrives together with accounts.Coming with accounts
y = 2x2 − 3x + 1Roots at x = 0.5 and x = 1
gauss-seidel-steps.pngSaved
gauss-seidel-steps.pdfSaved
gauss-seidel-steps.mdSaved
x3 − 4x2 + 5x − 2 = 0
- 1Try x = 1: 1 − 4 + 5 − 2 = 0
- 2Divide: (x − 1)(x² − 3x + 2)
- 3Factor: (x − 1)²(x − 2)
- 4Roots: x = 1 (twice), x = 2
y = 3x + 2
| x | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
| y | 2 | 5 | 8 | 11 |
Everything a method gives you
Every method comes with a graph, the full working, a table of values and a one-tap export, ready to drop into your notes.
Open the Algorithms hubEvery step, shown
Each method page takes you from the idea to the answer. Here is Gauss–Seidel, one step at a time; every method works the same way.
- 1Method and unit
- 2What it does
1 / 6Open Gauss–Seidel
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