Graphing Calculator

Plot any function of x directly in your browser - polynomials, trig functions, roots, and combinations of them.

Graphing Calculator

Live

y =

X min

X max

Supports +, -, *, /, ^, parentheses, sin, cos, tan, sqrt, abs, log, ln, and the constants pi and e. Example: sin(x) + x/2

How it works

Your expression is evaluated at 400 points across the X range, then connected as a smooth curve on the canvas

Example

Entering "x^2 - 3*x + 2" plots a parabola crossing the x-axis at x=1 and x=2, with its minimum point visible between them.

Step-by-step guide

Type an expression in terms of x - like "x^2", "sin(x)", or "2*x + 1".
Adjust the X range to zoom in or out on the part of the graph you want to see.
The graph updates automatically as you type.

Supported syntax

Use * for multiplication (write "2*x", not "2x"), ^ for exponents, and standard parentheses for grouping. Supported functions: sin, cos, tan, sqrt, abs, log (base 10), and ln (natural log). The constants pi and e are also available. Trig functions use radians, not degrees.

Common mistakes

Writing "2x" instead of "2*x" - the multiplication sign is required between a number and a variable, unlike handwritten math notation.

Assuming trig functions use degrees - this calculator uses radians throughout, so a full circle is 2*pi, not 360.

Frequently asked questions

Can I graph more than one function at once?

This version plots one function at a time - change the expression to see a different curve on the same axes.

Why does part of my graph look cut off or missing?

Functions with a division by zero or a negative square root at certain x-values (like 1/x at x=0) naturally have gaps or breaks at those points - the graph correctly leaves those points out rather than connecting across them.

Is my expression sent anywhere?

No - the entire graph is calculated and drawn directly in your browser. Nothing you type is sent to a server.

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