Examples: π, e, φ, τ, √2, √3, √5, γ, c, G, h, kᵦ, Nₐ, R, ε₀, μ₀.

Click a constant to insert it into the active expression.

Quick Conversions

Click any example to load it into the converter.

Choose a tool, then click directly on the graph. 2 Points covers the old segment-style two-point interaction.

Type ordinary calculations, symbolic commands, equations, or graph commands. Expressions with x graph automatically. Free letters become live variables automatically. Use the Branch selector above the keypad to load every supported function for that branch while keeping 0–9 and + − × ÷ fixed.

Graph examples

Symbolic examples

Special syntax

• Free letters become live variables automatically: mx+b means m*x+b and creates sliders for m and b.
• a = 3 still creates an explicit slider/definition. Standard constants such as e, i, and pi remain constants.
• Scroll/pinch or use ＋ / − to zoom. Curves are resampled after every pan/zoom, so graphs continue across the new viewport.
• f(x) = ... defines and graphs a function.
• integral(expr, a, b) computes a numerical definite integral; integrate(expr, x) is symbolic.
• solve(expr, guess) numerically finds a root; solveExact(equation, x) uses the symbolic engine.
• surface(expr) switches the graph to 3D. Remove the surface row to return to 2D.
• Use the Math Library for many more operations and ready-made syntax.
• Expression controls: 👁 hide/show graph, ⧉ duplicate, ▶ animate the first slider. Use ◎ to fit visible graphs.