News and graphics at @ClimateLab, a project of @PostGraphics.
Kaprekar's constantBayes’ TheoremDiscovering Pi With Monte CarloPaper FoldingHyperbolic & Inverse Hyperbolic FunctionsSecant & Tangent Lines on a Power FunctionRoundHeron's FormulaCompleting The SquareCircles, Angles and Right TrianglesSin, Cosine, and Tangent of an AngleFactorialZ Score TableBinominal Probability FormulaStatsLog AnimationCircular Segment with Chart of h-k RelationshipVisualizing vector additionFactor FunctionsFunction iteratorApproaching Euler's NumberSine WavePythagorean Triples
Quadratic Formula
quad = (a, b, c) => {
const discriminant = pow(b, 2) - 4 * a * c;
return discriminant < 0 ? null : [-1, 1].map(s => (-b + sqrt(discriminant) * s) / (2 * a));
}
q = quad(4.9, 8, -300)
pow = Math.pow
sqrt = Math.sqrt
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
