quiver

2D vector field plot.

Syntax

h = quiver(x, y, u, v, ...)

Description

Plots arrows at (x, y) with components (u, v). Each arrow’s length is proportional to the vector magnitude. Useful for visualizing 2D vector fields (gradients, fluid velocities).

Examples

[X, Y] = meshgrid(-2:0.5:2);
U = -Y; V = X;
quiver(X, Y, U, V)    % rotational field

See also

• quiver3 — 3D vector field plot.
• feather — Feather plot — vectors at regular x positions.
• compass — Compass plot — vectors radiating from origin.
• streamline — Streamlines through a 2D or 3D vector field.