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TimeSolutions

Classic MathWorld solutions — rebuilt from scratch, yours to play with

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a MathWorld solution gallery

Eight famous mathematical pictures, rebuilt from scratch as live toys. Drag a slider and the math redraws instantly — no libraries, just plain canvas and a little arithmetic. We replicate the idea, never the pictures.

Ideas catalogued by · Wolfram MathWorld ↗ · every card links to its source page. All code original.

01 Mandelbrot Set

Color each point c by how long the dance z → z² + c stays small. The points that never run away form the famous bug-shaped frontier.

02 Julia Set

Same rule z → z² + c, but now c is fixed and we color the starting point. Slide the seed and watch the shape morph from blobs to dust.

03 Sierpinski Triangle

The chaos game: drop a dot, then keep jumping halfway toward a random corner. From pure randomness a perfect fractal triangle appears.

04 Lissajous Curve

Two waves at right angles: x = sin(a·t), y = sin(b·t + φ). The ratio of a to b draws looping knots and ribbons.

05 Ulam Prime Spiral

Wind the counting numbers 1, 2, 3… into a square spiral and light up the primes. Mysteriously, they line up along diagonal streaks.

06 Golden Spiral

Plant each seed a turn of 137.5° (the golden angle) from the last, stepping outward. That single rule packs a sunflower’s perfect spiral head.

07 Logistic Bifurcation

Repeat x → r·x·(1−x) and plot where it settles. As r grows the answer splits, splits again, then dissolves into chaos.

08 Rose Curve

Polar petals from r = cos(k·θ). Connect equally-spaced points with straight lines (a Maurer rose) and woven lace appears.

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