Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Students · Direction Field

Direction Field for a dice distribution

Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a dice distribution live below — adjust the inputs and watch it respond, right in your browser.

Direction Field / Slope FieldLive

dy/dx = f(x, y) · drag the start point

Controls

dy/dx = f(x, y)

▶ Run in Python

Data Inspector

Equationdy/dx = f(x,y)

Curves1

IntegratorRK2

Governing equation

\frac{d y}{d x} = f (x, y) = y - x

Reading this result: Every tick shows the slope dy/dx = f(x,y) at that point; drag the start point and RK2 rethreads the solution curve live, always staying tangent to the arrows. That start point alone picks which one curve you get — click elsewhere to pin extra curves for comparison.

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More with Direction Field

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Frequently asked questions

Is this good for students?: Yes — this version of "Direction Field for a dice distribution" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.