Fieldline

Vector field studio

Tap the field for valuesHover the field for values

weakstrong

The field

F = (P, Q)

Each arrow is the push at that point. P moves it right. Q moves it up.

Horizontal · P(x, y)Vertical · Q(x, y)

Updates as you type. 2x means 2*x. sin x works too.

From a preset

Arrow density14 acrossArrow length100%

Particles90Speed1.00×Trail18 steps