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Tips:
• a = 1 creates a slider for a.
• (2, 3) plots a point; [(1,1),(2,4)] plots a list.
• (cos(t), sin(t)) is parametric (t ∈ [0, 2π]).
• f(x) = … defines a function. Then y = nDeriv(f, x) plots f′(x).
• Shift+click a curve to drop a tangent line.

Move cursor over the graph