PixelTool - Curve Plotter

PixelTool

Curve Plotting Tool

Curve Plotter

Data Points

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Settings

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Instructions

1

Add data points using the input fields

2

Adjust curve settings as needed

3

Click "Plot Curve" to generate the curve

© 2024 PixelTool. Advanced curve plotting made simple.

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Curve Plotter — Interactive Function & Data Graphing Tool

The Curve Plotter is a powerful, browser-based graphing utility that makes plotting mathematical functions, parametric curves, polar plots, and experimental data fast and intuitive. This free online curve plotter works on desktop and mobile browsers and requires no registration. It is ideal for students, engineers, scientists, data analysts, and content creators who need a reliable interactive graphing tool for visualization, analysis, teaching, and reporting. With live previews, traceability, export options, and advanced settings (grid, axis labels, range controls, and precision), Curve Plotter delivers an accurate and publication-ready plotting experience without the complexity of heavy software.

Key Features

  • Function plotting: Plot y = f(x) with support for algebraic, trigonometric, exponential, logarithmic, and piecewise expressions.
  • Parametric & polar plots: Define x(t), y(t) or r(θ) to render complex curves and polar diagrams.
  • Implicit curves: Plot relations like x² + y² = 1 or more complex implicit equations.
  • Data plotting & CSV import: Upload CSV or paste tabular data to get scatter, line, and regression fits.
  • Interactive tools: Zoom, pan, trace exact coordinates, add markers, and show tangent/normal lines.
  • Analysis helpers: Compute roots, intersections, maxima/minima, numerical derivatives, and definite integrals on selected intervals.
  • Multiple series: Plot many curves in one chart with color, thickness, and label controls for comparison.
  • Export & share: Export high-resolution PNG, SVG, or download data as CSV; share a permalink to reproduce the plot.
  • Precision & performance: Adjustable sampling density and adaptive step-size for stable plotting of stiff functions.

How to Use the Curve Plotter

  1. Choose plot type: Select Function, Parametric, Polar, Implicit, or Data mode.
  2. Enter expression or upload data: Type an expression like sin(x) + 0.5*cos(2*x), or upload a CSV with two columns (x,y).
  3. Set domain and range: Define x-range (e.g., -10 to 10), t-range for parametric plots, or θ-range for polar plots.
  4. Adjust sampling & style: Control number of sample points, line thickness, color, and smoothing options.
  5. Use interactive tools: Hover to trace coordinates, zoom to inspect features, and click to add annotations or compute local derivatives.
  6. Export & save: Export as PNG or SVG for presentations, or generate a permalink/CSV for reproducibility.

Practical Examples

Example 1: Plot a Lissajous curve in parametric mode: x(t)=sin(3t), y(t)=sin(4t+π/2), t∈[0,2π].

Example 2: Visualize a polar rose: r(θ)=cos(5θ), θ∈[0,2π], export as SVG for sharp printing.

Example 3: Import experimental data (CSV), fit a polynomial or exponential regression, and overlay the fitted curve with confidence intervals.

Tips & Best Practices

  • Use adaptive sampling for sharp features (vertical asymptotes) to avoid misleading lines across gaps.
  • Set appropriate x/y ranges before exporting to avoid distorted aspect ratios in prints and presentations.
  • When plotting implicit curves, increase resolution cautiously—these computations can be CPU intensive in the browser.
  • Label axes and include units for publication-quality graphs; use SVG export for vector output and later editing.
  • Check domain continuity for piecewise definitions to prevent connecting segments across discontinuities.

SEO Keywords & Phrases

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Frequently Asked Questions

Do I need to sign up to use Curve Plotter? No. The core plotting features are free and require no registration.

Can I export high-resolution images? Yes. Export options include PNG for raster needs and SVG for crisp vector output suitable for print.

Is it accurate enough for coursework and research? The tool supports configurable precision, scientific notation, and built-in constants; it is suitable for most educational and light research tasks. For mission-critical scientific work, verify results with specialized numerical tools.

Can I plot multiple functions together? Yes. Add multiple series with independent styles, labels, and legends to compare curves directly.