Science & Data

Graphing

draw(...) (alias plot(...)) turns an expression or value into a graph. Each draw renders a chart below the editor it was typed in, and the chart updates as you edit. The result line itself shows a short 📈 label — the picture is drawn underneath.

draw(x^2)
draw(x^2 - 4)
plot(2x + 1)

Curves

A single-variable expression in x (or y, z) is sampled and plotted as y = f(x). Pass several expressions to overlay them on one chart.

draw(sin(x), cos(x))
draw(x^3 - x)
draw(x^2, 2x + 1)

Complex numbers and points

A complex number is drawn as a vector on the Argand plane (real axis × imaginary axis). Coordinate points and vectors are plotted in the plane.

draw(3 + 4i)
draw((1 + i)^3)
draw(point(1, 2), point(3, 4))
draw(polar(5, 45))

Plot a result without draw

Lines whose result is naturally graphable — a single-variable expression, a complex number, a coordinate point, or a derivative/integral — show an inline 📈 affordance you can expand into a chart without writing draw.

x^2 - 4
3 + 4i
derivative(x^3, x)
point(2, 3)

Add a series with ＋ overlay

Every draw(...) chart has a ＋ overlay control. Open it to type another curve (e.g. sin(x)) or to pick a graphable line above it — the chosen line is referenced (l2, l3, …) and spliced into the draw(...) call, so the two plot together on one chart and stay linked as you edit. Because it only edits the draw line, the combination is just text and persists with the notebook.

Common mistakes