Type a formula and the graph appears on the board. No plotting by hand on squared paper, no working out points, no software to install.
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A line and a parabola with roots and vertex marked. The backbone of school function problems.
Exponential growth and its inverse, with axes scaled to the range so the graph stays readable.
Sine, cosine and tangent with a visible period, plus reciprocal, square root and absolute value.
Write the working beside it in mathematical notation, draw a figure or add a note for the student.
Put functions on one set of axes and compare how they behave side by side.
Set the minimum and maximum on both axes so the graph shows exactly the part you are discussing.
…and much more.
See all the toolsCreate a free account and start a new board. Math tools are in the left-hand panel.
Pick the graph tool and enter the formula. The graph is drawn immediately, with grid and axes.
Add the working beside it, mark the key points, then send a link or export everything to PDF.
We've collected answers to the questions we hear most often. If you can't find what you're looking for - write to us and we'll get back to you as soon as possible.
Can't find your question? Write to usNo. Enter the formula in ordinary notation and the tool typesets it. LaTeX is there when you want to write something more involved.
Yes. Add further graphs to the same board to compare shapes or show how a graph shifts.
Yes. Save the whole board with its graphs to a PDF file and send it straight from the app.
Yes. The board opens in a phone or tablet browser and the tool layout adapts to the screen size.
The world countson maths.
Join for free and discover everything PhiBoard has to offer today.
How to get started?
Create an account
Registration takes a few seconds and is completely free.
Create a board
Name your board and invite collaborators. You can also work on it alone.
Start creating
Draw, write formulas, create mind maps - all in one place.