What the tool does, how to run it, and what to expect from the result.
Type a function such as x^2 − 2 or 3sin(x) and it is drawn at once. Add up to six functions in different colours to compare them or see where they cross. Drag to move, scroll or pinch to zoom, and hover or tap to trace: the readout shows each function’s value at that x. Below the graph, each function’s y-intercept and the x-intercepts (roots) in the visible range are listed, found numerically to six decimals. For x^2 − 2 the roots are ±1.414214, that is ±√2.
A quick way to understand who this helps, what it solves, and where it connects next.
Students, teachers and anyone who wants to see what a function looks like.
Using the graphing calculator without installing anything or signing up.
Short answers for the questions people usually have before trying a utility like this.
Use ^ for powers (x^3, or x² directly), sqrt(x) or √x, cbrt(x), abs(x), sin, cos, tan and their inverses asin, acos, atan, ln for natural log, log for base 10, and e and pi as constants. Angles are in radians.
Yes. Implicit multiplication works: 2x, 3sin(x), (x+1)(x−1). Like most graphing calculators, 1/2x means (1/2)·x; write 1/(2x) for the other reading.
Not yet: it plots functions of x (y = …). For a circle, graph sqrt(1 − x^2) and −sqrt(1 − x^2) together.
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Type functions of x. Drag to move, scroll or pinch to zoom, hover to trace.
Write 2x, 3sin(x), (x+1)(x−1), x^2 or x², sqrt(x), abs(x), ln(x), log(x), e^x, pi. Implicit multiplication works; 1/2x means (1/2)·x.
y1: y-intercept (0, -2); x-intercepts in view: -1.414214, 1.414214
y2: y-intercept (0, 0); x-intercepts in view: -6.283185, -3.141593, 0, 3.141593, 6.283185