Tool 2 — Equation + Data Visualizer

Runs fully in your browser (no uploads). Upload Excel/CSV data, add equations, and overlay up to 10 figures.

1) Upload data (Excel/CSV)

Each sheet/file should contain two columns (x, y). Headers are OK.

Select one or more files

2) Add equation curves

Example: exp(x/a) + exp(b*x/tan(c))

x min x max points

Tip: Use parameters like a, b, c — they’ll appear as editable inputs automatically. After you render once, you can drag the sliders for instant updates.

3) Figures & overlays

Assign each dataset/curve to a figure. Up to 10 figures.

# figures Show legend

Tip: upload data, add an equation, then click “Render / Update plots”.

Supported syntax & tips

Use x as the independent variable.
Use parameters like a, b, c anywhere in the expression; they’ll appear as editable inputs.
Functions: exp, sin, cos, tan, asin, acos, atan, log, ln, sqrt, abs.
Powers: x^2. Constants: pi, e.
If you want to use an uploaded dataset’s x values for an equation, switch the equation’s x source to “from dataset”.

Visualization

Plots update instantly when you drag parameters (after your first Render).

Floating preview Auto-float when plots off-screen Figure

Parameter sliders

Drag sliders to update plots instantly. Values sync with the boxes on the left.