Graphing calculator

Use +, −, *, / and ^. Functions: sin, cos, tan, asin, acos, atan, sqrt, cbrt, abs, ln, log, log10 and exp. Graph trigonometry uses radians; ln is natural log and log/log10 use base ten.

The plot samples 201 x values, with extra domain checks between them. Undefined values, suspected discontinuities and values beyond ±100,000,000 are left unjoined. This finite view is not a symbolic proof of continuity or a complete search for roots. The table display rounds to 12 significant digits. Pan/zoom controls change the x view; the y scale fits the plotted curves. Use a smaller x range to inspect a detail. The x view is limited to −10,000…10,000.

For y = x^2, x = −2 gives y = 4; x = 0 gives y = 0; x = 2 gives y = 4. Compare these three points with the plotted curve.