Graphing Calculator
Seeing a function drawn makes its behaviour obvious. Type any expression — like x^2, sin(x) or 2*x+3 — and watch the graph appear instantly, with pan and zoom to explore every part of the curve.
Supported: + - * / ^ (power), sin cos tan, sqrt, abs, log (ln), exp, pi, e. Use a semicolon for 2 functions:
x^2; 2*x+1How to use
- Write a function, for example
sin(x)orx^3 - 2*x. - Set the X range and press "Draw Graph".
- Drag with the mouse to pan, and use the buttons to zoom.
Tips
- Start with the default X range, then zoom into interesting regions instead of guessing a range first.
- Watch for breaks in the curve — functions like 1/x are undefined at x = 0 and the gap is meaningful.
- Compare two functions by graphing them together; intersections show where expressions are equal.
- If the graph looks flat, widen or shift the range — you may be looking at a boring slice of an interesting curve.
Frequently Asked Questions (FAQ)
What does the graphing calculator do?
It plots math functions like x^2, sin(x) and 2*x+3 on a graph that you can zoom and pan, free in your browser.
Which functions and symbols can I use?
+, -, *, /, ^ (power), sin, cos, tan, sqrt, abs, log (ln), exp, pi and e; separate two functions with a semicolon, e.g. x^2; 2*x+1.
How do I zoom or move the graph?
Use the Zoom In and Zoom Out buttons, Reset View, or drag the graph with your mouse to pan.
Is it free and private?
Yes — free, no signup, and the graph is drawn in your browser, so nothing is uploaded.