Calculus

Scalar Fields & Gradients

Move a small square probe across a density cloud. Feel where the field grows fastest and how steep the slope is around any point.

Probe size 22

Slope—

Uphill—

Hover the cloud to move the probe. The arrow points toward denser regions; its length grows where the field changes fastest. Shrink the probe to read a single point, enlarge it to feel the neighbourhood.