[過去ﾛｸﾞ] 底辺私立医大を卒業した医者って頭悪いよね？ Part30 (1002ﾚｽ)
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756(1): (ﾜｯﾁｮｲ e1f6-4JRL [2001:ac8:40:6000:* [上級国民]]) 2024/05/06(月) 06:13:27.11 ID:fp7P4Tx60(1/5) AAS
>>745
レス乞食登場
757: (ﾜｯﾁｮｲ e1f6-4JRL [2001:ac8:40:6000:* [上級国民]]) 2024/05/06(月) 06:41:17.21 ID:fp7P4Tx60(2/5) AAS
>>749
2行に短縮
f[x_] := If[x==0,"0",{"1","2","3","4","5","6","7","8","9","A","J","Q","K"}[[x]]];
StringJoin["0.",f /@ RealDigits[1/(14^^2024),14,2024][[1]]]
758(1): (ﾜｯﾁｮｲ e1f6-4JRL [2001:ac8:40:6000:* [上級国民]]) 2024/05/06(月) 06:55:09.04 ID:fp7P4Tx60(3/5) AAS
Wolfram Language 14.0.0 Engine for Microsoft Windows (64-bit)
Copyright 1988-2023 Wolfram Research, Inc.
In[1]:= StringJoin["0.",If[#==0,"0",{"1","2","3","4","5","6","7","8","9","A","J","Q","K"}[[#]]]& /@ RealDigits[1/(14^^2024),14,2024][[1]]]
Out[1]= 0.6K6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA56\
> 1AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AK\
> K6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK60\
> 87Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q\
> 3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q300\
> 7K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4\
> QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA5\
> 61AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561A\
> KK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6\
> 091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091\
> 387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387\
> Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q30\
> 07K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K\
> 4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA\
> 561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561\
> AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK\
> 6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561AKK6091387Q3007K4QA561A
762(1): (ﾜｯﾁｮｲ e1f6-4JRL [2001:ac8:40:6000:* [上級国民]]) 2024/05/06(月) 09:42:09.91 ID:fp7P4Tx60(4/5) AAS
練習問題
十進法で1/2024で表される数値を二進法の小数で表すとき
(1) 循環節は何桁の数字になるか？
(2) 循環節を列挙せよ。
あらゆるフリーリソースを用いてよい。
参考にならない参考資料
1/2024（十進法) =
0.00000000001000000110000100100011011010100011111010111100001101001001110111011001100011001010
01011111000111010101100000001000000110000100100011011010100011111010111100001101001001110111011001
10001100101001011111000111010101100000001000000110000100100011011010100011111010111100001101001001
11011101100110001100101001011111000111010101100000001000000110000100100011011010100011111010111100
00110100100111011101100110001100101001011111000111010101100000001000000110000100100011011010100011
11101011110000110100100111011101100110001100101001011111000111010101100000001000000110000100100011
01101010001111101011110000110100100111011101100110001100101001011111000111010101100000001000000110
00010010001101101010001111101011110000110100100111011101100110001100101001011111000111010101100000
00100000011000010010001101101010001111101011110000110100100111011101100110001100101001011111000111
01010110000000100000011000010010001101101010001111101011110000110100100111011101100110001100101001
011111000111010101100000001000000110.....(二進法)
f[x_] := If[x==0,"0","1"]
StringJoin["0.",Table["0",10],f /@ Flatten@RealDigits[1/2024,2,1000][[1]]]
Flatten@RealDigits[1/2024,2][[1]]
Length@Flatten@RealDigits[1/2024,2][[1]]
767(1): (ﾜｯﾁｮｲ e1f6-4JRL [2001:ac8:40:6000:* [上級国民]]) 2024/05/06(月) 13:41:39.41 ID:fp7P4Tx60(5/5) AAS
>>762
これで解決
recdigits[a_,b_] := Level[RealDigits[a,b],{3}];
RealDigits[1/2024,2]
recdigits[1/2024,2]
% // Length
Subsets関数もそうだが引数が3か{3}かで動作が変わる。
これに気づくのに時間がかかった。
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