Scientific & Graphing Calculator
Calculate mode for everyday scientific arithmetic (press SHIFT for inverse trig, 10ˣ, and eˣ), plus Graph and Table modes for plotting up to three functions of x.
| x | Y1 |
|---|---|
| -5 | 25 |
| -4 | 16 |
| -3 | 9 |
| -2 | 4 |
| -1 | 1 |
| 0 | 0 |
| 1 | 1 |
| 2 | 4 |
| 3 | 9 |
| 4 | 16 |
| 5 | 25 |
Scientific calculator
How this calculator works
This calculator has three modes. Calculate mode handles ordinary scientific arithmetic — trigonometry, logarithms, powers, factorials, and parenthesized expressions — with a SHIFT key that swaps sin/cos/tan/log/ln for their inverses (asin/acos/atan/10ˣ/eˣ), the same convention physical scientific calculators use to fit more functions onto fewer keys.
Graph mode plots up to three functions of x at once, with adjustable window bounds, zoom, and an Auto-Y button that fits the vertical range to whatever is currently visible. Table mode tabulates any of those same functions at a start value and step size you choose.
- 1Calculate mode: tap digits and functions to build an expression, then press = or Enter.
- 2Graph mode: type an expression in terms of x into Y1 (and optionally Y2, Y3), then adjust Xmin/Xmax/Ymin/Ymax or press Auto Y.
- 3Table mode: pick one of your Graph-mode functions, set a start value and step, and read off the tabulated x/y pairs.
Frequently asked questions
What is the difference between degree and radian mode?
Degree mode treats trig function arguments as degrees (a full circle is 360); radian mode treats them as radians (a full circle is 2π). The DEG/RAD button switches between them, and it affects Calculate, Graph, and Table modes together.
Why does my graph have a gap in the middle of the line?
That's a vertical asymptote — for example tan(x) is undefined at 90° (or π/2 radians) and every 180° after that. The graph correctly shows a break there instead of drawing a false vertical line straight up the screen.
How do I plot more than one function at once?
Enter additional expressions into the Y2 and Y3 fields in Graph mode — each is plotted in its own colour on the same chart, and the "show" checkbox next to each one toggles it on or off without clearing what you typed.
What does SHIFT do on the keypad?
It's a momentary modifier, like on a physical scientific calculator: press SHIFT, then sin/cos/tan/log/ln, to get asin/acos/atan/10ˣ/eˣ instead. It resets after one key press.
Other calculators
Standard
Everyday arithmetic with memory functions and full keyboard support.
Engineering
Complex-number arithmetic with j-notation, REC/POL display, and engineering (SI-prefix) notation.
Unit Converter
Convert length, mass, temperature, energy, digital storage, and 13 other unit categories in one tool.
Circuit Tools
Ohm's Law, voltage dividers, RC/RLC, series/parallel equivalence, LED resistors, PCB trace width, and more.
Mortgage
Monthly payments, total interest, and a full amortization schedule.
Islamic Mortgage
Compare Diminishing Musharaka, Murabaha, and Ijarah home finance payment schedules.
Overpayment
Estimate mortgage interest saved, time saved, and revised payoff date from regular or one-off overpayments.
Salary Tools
UK, US, and KSA take-home salary calculators, plus UK salary sacrifice and student loan repayment — all on one page.
Loan
Repayment schedule for personal loans, car finance, and more.
Savings
Project how a lump sum and regular contributions grow over time.
Currency
Convert between currencies using a median consensus from multiple live exchange-rate sources.