Vector Fields

An arrow at every point

An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

• A vector field puts an arrow F(x, y) = (P, Q) at every point.
• Basic patterns: uniform, source, sink, whirl, shear, saddle.
• Test simple points to read a field’s formula.

Steps

1. Arrows everywhere
2. Read an arrow
3. Which way round?
4. Build a saddle
5. Gravity as a field
6. Where is it calm?