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static ItIt<BigInt> collatzSequence(long n) { ret collatzSequence(bigInt(n)); } static ItIt<BigInt> collatzSequence(BigInt _n) { ret new ItIt<BigInt> { BigInt three = bigInt(3); BigInt n; public bool hasNext() { ret neq(n, BigInt.ONE); } public BigInt next() { if (n == null) ret n = _n; // first number if (even(n.intValue())) n = div(n, BigInt.TWO); else n = plus(mul(n, three), BigInt.ONE); ret n; } }; }
Began life as a copy of #1030359
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Snippet ID: | #1030361 |
Snippet name: | collatzSequence - Collatz sequence for a number (as iterator). returns final 1 and initial number |
Eternal ID of this version: | #1030361/4 |
Text MD5: | 1e7e86c1ee37560ee7ca9cca99940d32 |
Transpilation MD5: | 1e3078bfd9392994c31d0155bdb21f96 |
Author: | stefan |
Category: | javax / maths |
Type: | JavaX fragment (include) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2020-12-09 15:12:00 |
Source code size: | 516 bytes / 23 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 196 / 276 |
Version history: | 3 change(s) |
Referenced in: | #1006654 - Standard functions list 2 (LIVE, continuation of #761) |