Level Curve Plotter

How to read a contour map

A level curve is a slice of the surface $z=f(x,y)$ at one fixed height.

Every point on a single contour gives the same output value, even though the coordinates are different.

Regions where contours bunch together represent steeper change, while wider spacing indicates a flatter surface.

Use standard expressions such as $x^2+y^2$ , $x^2-y^2$ , or $sin(x)+cos(y)$ .
Keep the plot window in a range where the function stays real-valued.
Increase contour count for finer structure, but reduce it again if labels become hard to scan.

Visualize exponential functions with an interactive plotter.

Visualize rational functions with our interactive graph plotter.

Create interactive scatter plots online to visualize data relationships.