Graphing Calculator

Graph explicit functions of x with a simple responsive graphing calculator.

Graph

Active equations

    Enter an explicit function of x, such as x^2, sin(x), 2x + 4, y = x^2, or f(x) = x^2.

    How to Use

    1. Enter a function using x as the variable.
    2. Select Graph or press Enter.
    3. Add more equations to compare multiple functions.
    4. Use the visibility control to hide or show a curve.
    5. Use the delete control to remove an equation.
    6. Zoom or move around the graph using the available graph controls.

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    Graphing Calculator

    The Graphing Calculator plots mathematical functions on an interactive coordinate plane. Enter a function of x, such as x^2, sin(x), or 2x + 4, and add multiple equations to compare their graphs. Each equation can be temporarily hidden or removed from the graph.

    Examples to Try

    Try entering one of these expressions:

    • x^2
    • sin(x)
    • cos(x)
    • 2*x + 4
    • sqrt(x)
    • abs(x)
    • 1 / x
    • log(x)
    • exp(x)
    Supported Function Syntax

    This first version supports explicit functions of x. Use this syntax:

    • Powers: x^2, x^3
    • Parentheses: (x + 2)^2
    • Multiplication: 2*x
    • Fractions: 1 / x
    • Square roots: sqrt(x)
    • Absolute values: abs(x)
    • Trigonometric functions: sin(x), cos(x), tan(x)
    • Logarithmic functions: log(x)
    • Exponential functions: exp(x)
    Equation List

    Every equation in the list corresponds to one curve on the graph. The color beside the equation identifies its curve. Hiding an equation temporarily removes the curve without deleting it. Deleting an equation removes it completely.

    Graphing Tips
    • Use parentheses to make the intended order clear.
    • Use * for multiplication, such as 2*x.
    • Some functions are undefined for part of the graph.
    • Discontinuous or very steep functions may appear broken.
    • Add related equations together to compare transformations.

    For example, compare:

    • x^2
    • (x - 2)^2
    • (x - 2)^2 + 3
    Frequently Asked Questions

    Can I graph more than one equation?

    Yes. Add each equation separately, and all visible equations will appear on the same graph.

    Why is part of my graph missing?

    The function may be undefined for those values of x. For example, sqrt(x) is not real for negative values of x.

    Can I hide a graph without deleting it?

    Yes. Use the visibility control beside the equation.

    Can I graph circles or inequalities?

    Not in the current version. This calculator presently supports explicit functions of x.

    Credits

    Graphing Calculator

    Version: 0.1