Graphic Display Calculator
Graphic display calculator online works out Result and Full-precision result from Expression, Angle unit and Significant figures. The default figures on this page give result of 21; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
3 steps
- Read as: x^2 - 4 with angles in radians.
- Sample y = f(x) at 11 evenly spaced points from x = -5 to x = 5 (step 1).
- y ranges from -4 to 21 over the window.
Step-by-step workingtable
Value table for y = f(x)table
| x | y |
|---|---|
| -5 | 21 |
| -4 | 12 |
| -3 | 5 |
| -2 | 0 |
| -1 | -3 |
| 0 | -4 |
| 1 | -3 |
| 2 | 0 |
| 3 | 5 |
| 4 | 12 |
| 5 | 21 |
Its 9 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
5 sources
What the graphic display calculator online calculates
Evaluates a scientific expression with trigonometric, inverse and hyperbolic functions, logarithms to any base, roots, powers, factorials and combinatorics, honouring standard operator precedence and an explicit angle unit; also tabulates y = f(x) for graphing, solves f(x) = target for x by bisection, and simplifies and differentiates an expression symbolically.
How to use this graphic display calculator online
Enter Expression, Angle unit, Significant figures and Value of x (optional). Result updates as you type. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Result, Full-precision result and Result with separators.
The method follows NIST Digital Library of Mathematical Functions, Chapter 4 (Elementary Functions), Abramowitz & Stegun, Handbook of Mathematical Functions, Chapter 4, ECMA-262, ECMAScript Language Specification, §21.3 The Math Object, Burden & Faires, Numerical Analysis, §2.1 The Bisection Method and Stewart, Calculus: Early Transcendentals, Chapter 3 (Differentiation Rules).
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
What information do I need for the graphic display calculator online?
You need Expression, Angle unit, Significant figures, Value of x (optional), Window / bracket: smallest x, Window / bracket: largest x and Points to tabulate. The page opens with default figures that give result of 21, so you can see the scale before entering your own.
What does this graphic display calculator online show?
It shows Result, Full-precision result, Result with separators, Scientific notation, Expression as parsed, Angle unit, Result read as an angle, in degrees and Result read as an angle, in radians, with the working and any warnings for your entries.
Can I check how the graphic display calculator online result was calculated?
Yes. The “How this is worked out” section shows the calculation steps, and the sources section identifies the references used for the method.