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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
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21
Task/Negative-base-numbers/Mathematica/negative-base-numbers-1.math Normal file
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EncodeBase[number_,base_]:=Module[{
out={},
rem,n=number,b=base
},
While[
n!=0,
{n,rem}={Floor[Divide[n,b]],Mod[n,b]};
If[
rem<0,
n+=1;
rem-=b
];
PrependTo[out,rem]
];
out
];
DecodeBase[list_,base_]:=Total[list*base^Range[Length[list]-1,0,-1]];
Print[EncodeNegBase[10,-2],"=",DecodeBase[EncodeNegBase[10,-2],-2]];
Print[EncodeNegBase[146,-3],"=",DecodeBase[EncodeNegBase[146,-3],-3]];
Print[EncodeNegBase[15,-10],"=",DecodeBase[EncodeNegBase[15,-10],-10]];

2
Task/Negative-base-numbers/Mathematica/negative-base-numbers-2.math Normal file
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DecodeBase[ToCharacterCode[$Version], -126](*ascii 1-byte encoding*)
DecodeBase[ToCharacterCode[$Version], -(2^16 - 1)](*2-byte encoding*)