Chengfang Lu
e72bc061c5
Major changes: - New frontend (platform/web/): Vite + React 18 + TypeScript + Tailwind - 4-module navigation: 数据送标 / 模型管理 / 车队管理 / 系统管理 - Data catalog with charts (DMS/ADAS/Lane 3-tab view) - Quality review workflow (标注质检): Good/Fine/Bad scoring with auto-advance - Audit enhancements: batch operations, rejection categories, Feishu notifications - Operation audit log (操作日志) - World model simulation studio (仿真工坊) - Dataset version management with snapshots and diff - ADAS 7-class dataset integration (138K images organized + compressed) - User management with Feishu integration and pagination - CRUD/search/filter on all pages, card layout redesign - PIL-optimized image overlay rendering - Auto-snapshot on build, in_review workflow stage - Removed embedded algorithm code (now in workspace)
30 lines
704 B
JavaScript
30 lines
704 B
JavaScript
/*
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Fraction.js v5.0.0 10/1/2024
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https://raw.org/article/rational-numbers-in-javascript/
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Copyright (c) 2024, Robert Eisele (https://raw.org/)
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Licensed under the MIT license.
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*/
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const Fraction = require('fraction.js');
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// Calculates (a/b)^(c/d) if result is rational
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// Derivation: https://raw.org/book/analysis/rational-numbers/
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function root(a, b, c, d) {
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// Initial estimate
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let x = Fraction(100 * (Math.floor(Math.pow(a / b, c / d)) || 1), 100);
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const abc = Fraction(a, b).pow(c);
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for (let i = 0; i < 30; i++) {
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const n = abc.mul(x.pow(1 - d)).sub(x).div(d).add(x)
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if (x.n === n.n && x.d === n.d) {
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return n;
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}
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x = n;
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}
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return null;
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}
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root(18, 2, 1, 2); // 3/1
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