INTERACTIVE MATH PLOTTER

Equation Explorer

Enter a math expression, choose one to three input variables, and see the graph adapt to the number of variables. Use generated ranges or provide sample points as CSV. Expressions and data stay in your browser.

1D and 2D function plots3D surface and coordinate viewsCSV paste and uploadSafe math parser

FUNCTION AND INPUTS

Enter an expression

Example

Expression

Use explicit multiplication, such as 2*x. Variables: x, y, z. Also supports + − * / ^, parentheses, pi, e, and abs, sqrt, sin, cos, tan, asin, acos, atan, ln, log, exp, floor, ceil, round, min, and max. Trigonometric functions use radians.

Choose input variables XFirst input axis YSecond input axis ZThird input axis

Generated variable ranges

X rangeMinimumMaximum

Use CSV sample points (optional)

Each row supplies values for the selected input variables. The expression is evaluated for every row. CSV mode draws the actual samples; it does not invent values between them.

Upload CSV or TSV Or paste a numeric table First row contains column namesTurn this off if the first line is numeric data.

CSV is optional. Without it, the graph uses your variable ranges.

One-variable view

Generated plot detail

FUNCTION GRAPH

Function curve

Expression output

The curve shows f(x) over the selected range.

Lower outputHigher outputUndefined samples are omitted

Sample values

Representative coordinates and calculated results.

Evaluate one exact point

Enter values for the active variables.

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How graph dimensions work

With one input, f(x) is shown as a function curve with X on the horizontal axis and the result on the vertical axis. A separate 1D number-line view shows the sampled X inputs.
With two inputs, f(x,y) is drawn as a 3D surface: X and Y are the base axes and the expression output is height.
With three inputs, f(x,y,z) has a fourth quantity: its output. The plot uses X, Y and Z as the cube coordinates and color to represent the expression output.
CSV rows are mapped to the active variable columns and evaluated one at a time. In 3D CSV mode, you can connect rows in input order to show a path.

A single scalar expression of three independent variables cannot be shown as a unique 3D line or surface without choosing a slice or another rule. This page uses color for the fourth value, so all three inputs remain visible as cube axes.

Input format and limits

Use explicit multiplication, parentheses and powers such as (x + y)^2. Use only variables that are checked as active.
CSV/TSV files can include column names. Map each active variable to a numeric column; blank or non-numeric cells are reported rather than silently skipped.
CSV inputs are limited to 5 MB and 5,000 rows. Generated 3D point clouds are sampled and are not a symbolic proof of the function’s behavior.
All parsing and calculations happen in this browser. The expression is parsed as math and never executed as JavaScript; CSV data is not uploaded.

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