Template:Random number/testcases

Testing sandbox version compared to main version

Clic purge to get new ouputs.

Code	Result with sandbox template	Result with main template	Note
{{Random number}}	57	59	default parameters (results range is 0..99)
{{Random number|100|189|67}}	15 (KO)	59 (ok)	should be same as above (the default seed depends on current day of year, the default prime is 67)
{{Random number|10000}}	9221	3359	new parameters (results range in 0..9999)
{{Random number|10000|189|67}}	4943 (KO)	3359 (ok)	Should be same as above
{{Random number|10000|189|61}}	1873	6761	(use another prime) this and others should all be different
{{Random number|10000|6}}	5657	1098	(varying the seed) note that the sequence is linear but the distance only depends on the value of the default prime (67)
{{Random number|10000|5}}	9435	1031
{{Random number|10000|4}}	89	964
{{Random number|10000|3}}	1325	897
{{Random number|10000|2}}	3927	830
{{Random number|10000|1}}	3297	763
{{Random number|10000|0}}	1744	696
{{Random number|10000|6|2}}	9677	1823	(varying the seed) with a small prime (2) should still get distinct values in the linear sequence
{{Random number|10000|5|2}}	7869	1821
{{Random number|10000|4|2}}	1648	1819
{{Random number|10000|3|2}}	9835	1817
{{Random number|10000|2|2}}	3614	1815
{{Random number|10000|1|2}}	7397	1813	(varying now the prime number) should get distinct non-linear sequences
{{Random number|10000|1|3}}	3222	2719
{{Random number|10000|1|5}}	2641	4531
{{Random number|10000|1|7}}	784	6345
{{Random number|10000|1|11}}	3506	9970
{{Random number|10000|1|13}}	7105	1782
{{Random number|10000|1|17}}	5276	5406
{{Random number|10000|1|19}}	8067	7232
{{Random number|10000|1|23}}	2838	857
{{Random number|10000|1|29}}	1025	6287
{{Random number|10000|1|31}}	1221	8100
{{Random number|10000|1|37}}	8373	3545
{{Random number|10000|1|41}}	6780	7170
{{Random number|10000|1|43}}	4967	8995
{{Random number|10000|1|47}}	4507	2625
{{Random number|10000|1|51}}	2524	6210
{{Random number|10000|1|53}}	1903	8019
{{Random number|10000|1|59}}	4180	3455
{{Random number|10000|1|61}}	1426	5293
{{Random number|10000|1|67}}	800	763
{{Random number|10000|1|71}}	4782	4365
{{Random number|10000|1|73}}	2771	6139
{{Random number|10000|1|79}}	6549	1590

Sandbox notes

This version uses fmod builtin operator (no longer need of Template:Mod) and the largest Mersenne prime (2³¹−1) that fits in 32 bits.

This Mersenne prime is chosen to offer equal distribution when reducing the number of digits (better than bitmasking by an exact power of 2).

The next Mersenne prime (2⁶¹−1) is too large to fit in 64-bit integers for computing products by reasonable primes (we could only use 2, 3, 5 or 7), or even just in the 52 bits of precision of a double float (used by #expr).