Principia Pocket: Math Lab

Built for math nerds, engineers, and curious minds who still love the look of graph paper, fountain-pen proofs, and classic scientific calculators. Principia Pocket turns your iPhone into an interactive 1970s mathematical handbook and visual proof laboratory. Instead of memorizing dry formulas, adjust live parameters on vintage drafting plates and watch pure mathematics unfold in real time across 16 foundational concepts. 16 Interactive Mathematical Laboratories Included: 1. Sieve of Eratosthenes: Step through prime factors and watch composite numbers cross out across a 100-grid. 2. Golden Ratio & Phyllotaxis: Adjust divergence angles to see why $\phi \approx 1.61803$ packs sunflower seeds into Fibonacci spirals. 3. Pascal’s Triangle ($\pmod 2$): Reveal the self-similar Sierpiński gasket hidden inside binomial coefficients. 4. Collatz $3n+1$ Hailstone Plotter: Trace the unpredictable…