@slimetree_: universe zoom pt. 2 {invert} #edit #fyp #viral #space #universe using System; using System.Collections.Generic; namespace _ { public readonly struct _0 { public readonly double _a, _b, _c; public _0(double a, double b, double c) => (_a, _b, _c) = (a, b, c); public static _0 operator +(_0 x, _0 y) => new _0(x._a + y._a, x._b + y._b, x._c + y._c); public static _0 operator -(_0 x, _0 y) => new _0(x._a - y._a, x._b - y._b, x._c - y._c); public static _0 operator *(_0 x, double k) => new _0(x._a * k, x._b * k, x._c * k); public double _ => Math.Sqrt(_a * _a + _b * _b + _c * _c); } public sealed class _1 { public double _m; public _0 _p, _v; public _1(double m, _0 p, _0 v) => (_m, _p, _v) = (m, p, v); } public sealed class _2 { private readonly List<_1> _u = new List<_1>(); private readonly double _k; public _2(double k) => _k = k; public void _(_1 x) => _u.Add(x); public void __(double t) { var a = new _0[_u.Count]; for (var i = 0; i < _u.Count; i++) { for (var j = 0; j < _u.Count; j++) { if (i == j) continue; var d = _u[j]._p - _u[i]._p; var r = d._; if (r < 1e-9) continue; a[i] = a[i] + d * (_k * _u[j]._m / (r * r * r)); } } for (var i = 0; i < _u.Count; i++) { _u[i]._v = _u[i]._v + a[i] * t; _u[i]._p = _u[i]._p + _u[i]._v * t; } } public IReadOnlyList<_1> ___ => _u; } internal static class _ { private static void Main() { var x = new _2(6.67430e-11); x._(new _1(1.989e30, new _0(0, 0, 0), new _0(0, 0, 0))); x._(new _1(5.972e24, new _0(1.496e11, 0, 0), new _0(0, 29780, 0))); for (var i = 0; i < 1000; i++) { x.__(3600); Console.WriteLine($"{x.___[1]._p._a:E},{x.___[1]._p._b:E},{x.___[1]._p._c:E}"); } } } }

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Tuesday 15 September 2026 22:27:55 GMT