An Interactive 2D/3D function grapher for learning and teaching.

2D: Built-in functions (linear, polynomial, trig, exponential, etc.), custom expressions, live f(x) at any x, adjustable parameters.

Calculus: Derivative f'(x), integral ∫f(x), Compare mode, Trail.

Live Random: Random x exploration with adjustable speed and trail.

Learning: Info panel (formula, description, domain, range, properties), reset view, save graph as PNG.

3D: Surface plots z = f(x,y), rotate/zoom, animation and trail.

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