How to use Function Graph Plotter
- Enter a supported real expression and increasing x/y bounds.
- Inspect the sampled graph and its undefined or clipped gaps.
- Download the SVG or CSV and account for the finite sampling limits.
Example: Function Graph Plotter
Function Graph Plotter: 501 real samples; 1 visible segments.
You add
Real expression in x: sin(x)
x minimum: -6.28
x maximum: 6.28
y minimum: -2
y maximum: 2
You get
501 real samples; 1 visible segments.
Undefined, clipped and large-jump samples break the line. Sampling can miss narrow features and discontinuities.
-6.28 | 0.00318530179314
-5.652 | 0.590102104665
-5.024 | 0.951840878816
Options
- Axis range
- Choose x and y limits in the same units as your expression. The y range controls clipping rather than changing the function.
- Sampled CSV
- The export contains 501 evaluated x positions. Use those rows to inspect undefined or clipped samples.
Supported inputs and limits
The bounded grammar uses explicit multiplication and radians. X/y bounds are within ±1,000,000; the graph has 501 samples. Undefined, clipped and large-jump samples break paths. Narrow features and unsampled discontinuities can be missed; a connected segment is not proof of continuity.
Where your input is processed
This tool processes your input in this browser. Your text and files are not uploaded to UseFreeTools. Check this tool's limits for anything it may save on your device.
A joined segment does not prove continuity
The plot breaks visible paths at detected undefined, clipped or large-jump samples. A discontinuity between sample positions can still be missed. Zooming the entered range can reveal features, but a sampled image cannot establish the exact behavior at every real point.
Questions about Function Graph Plotter
Why can part of a curve disappear?
A value may be undefined, outside the chosen y range or separated by the jump rule.
Can this prove that an expression is continuous?
No. A finite sampled plot cannot establish continuity.
What does the CSV contain?
It contains the 501 sampled x values and real y values; undefined sampled points have a blank y cell.