2D Graphing Calculator — GetCalcMaster

2D graphing in your browser

GetCalcMaster’s 2D Graphing tool is built for fast visual checks: plot y = f(x), explore with pan/zoom, and verify key points with the calculators. It’s great for homework, engineering sanity checks, and building intuition before you move to heavier tools.

Quick start

1. Open the 2D graphing tool at /graph/2d.
2. Enter a function in terms of x (example: sin(x) or x^2 - 4x + 3) and plot.
3. Adjust the viewing window (min/max) to reveal roots, turning points, and asymptotes.
4. Keep an audit trail in Notebook when you’re working with parameters or multiple attempts.

Example functions to test

• sin(x) and cos(x) — periodic curves (check RAD vs DEG in the calculators).
• x^3 - 3x — multiple turning points and three real roots.
• exp(-x^2) — smooth bell-shaped curve; good for zoom/resolution checks.
• 1/(x-2) — vertical asymptote at x=2 (expect a gap).
• sqrt(abs(x)) — tests domain edges and rendering near x=0.

Common pitfalls

• Radians vs degrees: trig graphs depend on angle mode. If the curve looks “off,” verify values in Scientific Calculator and switch DEG/RAD.
• Discontinuities: functions like tan(x) or 1/x have poles; breaks are expected.
• Restricted domains: ln(x) and sqrt(x) aren’t real for many inputs; the plot should drop out where the value is undefined.

Verification tip

Pick a few x-values (for example x=0, x=1, x=2) and evaluate numerically in /calc/scientific. If the plotted point disagrees with the numeric result, you’ve found a bug worth reporting.