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}}	14	14	default parameters (results range is 0..99)
{{Random number|100|208|67}}	14 (ok)	14 (ok)	should be same as above (the default seed depends on current day of year, the default prime is 67)
{{Random number|10000}}	8714	8714	new parameters (results range in 0..9999)
{{Random number|10000|208|67}}	8714 (ok)	8714 (ok)	Should be same as above
{{Random number|10000|208|61}}	176	176	(use another prime) this and others should all be different
{{Random number|10000|6}}	5180	5180	(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}}	5113	5113
{{Random number|10000|4}}	5046	5046
{{Random number|10000|3}}	4979	4979
{{Random number|10000|2}}	4912	4912
{{Random number|10000|1}}	4845	4845
{{Random number|10000|0}}	4778	4778
{{Random number|10000|6|2}}	9109	9109	(varying the seed) with a small prime (2) should still get distinct values in the linear sequence
{{Random number|10000|5|2}}	9107	9107
{{Random number|10000|4|2}}	9105	9105
{{Random number|10000|3|2}}	9103	9103
{{Random number|10000|2|2}}	9101	9101
{{Random number|10000|1|2}}	9099	9099	(varying now the prime number) should get distinct non-linear sequences
{{Random number|10000|1|3}}	3649	3649
{{Random number|10000|1|5}}	2747	2747
{{Random number|10000|1|7}}	1844	1844
{{Random number|10000|1|11}}	41	41
{{Random number|10000|1|13}}	9146	9146
{{Random number|10000|1|17}}	7337	7337
{{Random number|10000|1|19}}	6442	6442
{{Random number|10000|1|23}}	4645	4645
{{Random number|10000|1|29}}	1939	1939
{{Random number|10000|1|31}}	1036	1036
{{Random number|10000|1|37}}	8344	8344
{{Random number|10000|1|41}}	6532	6532
{{Random number|10000|1|43}}	5637	5637
{{Random number|10000|1|47}}	3837	3837
{{Random number|10000|1|51}}	2037	2037
{{Random number|10000|1|53}}	1111	1111
{{Random number|10000|1|59}}	8415	8415
{{Random number|10000|1|61}}	7549	7549
{{Random number|10000|1|67}}	4845	4845
{{Random number|10000|1|71}}	2987	2987
{{Random number|10000|1|73}}	2079	2079
{{Random number|10000|1|79}}	9416	9416

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).