A modern graphing calculator. Type a function of x and see it plotted instantly — pan, zoom, and trace any curve.
What it means
Any single-variable function of x. Arithmetic (+, −, ×, ÷, ^), parentheses, and the standard math functions: sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, log (base 10), ln (natural log), exp, sqrt, cbrt, abs, floor, ceil, round, sign. Constants pi (or π) and e work out of the box. Implicit multiplication is supported, so 2x and 3sin(x) parse the way you'd expect.
Drag inside the canvas to pan the view. Scroll the mouse wheel to zoom centered on the cursor. On touch devices, drag with one finger to pan and pinch with two to zoom. The "Reset view" button snaps back to the default window of x in [-10, 10] and y in [-7, 7].
Functions like 1/x and tan(x) have vertical asymptotes; the plotter detects sharp jumps between adjacent samples and breaks the path instead of drawing a straight line across the gap. The result reads correctly visually but is still an approximation — increase the zoom near a discontinuity to see it more precisely.
FAQ
Not yet — this version plots one function of x at a time. Multi-function support (with distinct colors and a sliders panel) is on the roadmap.
The plot samples the function at roughly 1.5× the canvas pixel width and connects the samples with straight segments, which is plenty for visual identification. For exact values, hover over the curve and read x and y from the toolbar above the canvas.
sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, log (base 10), log2, ln (natural log), exp, sqrt, cbrt, abs, floor, ceil, round, sign, and the binary functions min(a,b), max(a,b), pow(a,b), atan2(a,b). Constants: pi, π, e, tau.
Writing 2x is interpreted as 2*x, and 3sin(x) as 3*sin(x). Two numbers in a row do NOT multiply implicitly (e.g., 2 3 is an error), and explicit multiplication with * always works.
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