This commit is contained in:
Ingy döt Net 2013-04-10 21:29:02 -07:00
parent 764da6cbbb
commit db842d013d
19005 changed files with 197040 additions and 7 deletions

View file

@ -0,0 +1,3 @@
seq[n_, b_] := FixedPointList[Total[IntegerDigits[#, b]] &, n];
root[n_Integer, base_: 10] := If[base == 10, #, BaseForm[#, base]] &[Last[seq[n, base]]]
persistance[n_Integer, base_: 10] := Length[seq[n, base]] - 2;