From Wikipedia, the free encyclopedia
Duodecimālā skaitīšanas sistēma ir pozicionāla skaitļu pieraksta sistēma ar bāzi 12. Šajā sistēmā skaitli desmit var pierakstīt kā apgrieztu "2" (2) un vienpadsmit apgrieztu "3" (3). Šo pierakstu ieviesa Īzaks Pitmens.[1] Šī pieraksta forma datorsistēmās ir pieejama kā Unicode rakstzīmes kopš 2015. gada jūnija[2] kā ↊ (218A) un ↋ (218B).[3] Citi pieraksta veidi izmanto "A", "T" vai "X" desmitnieka un "B" vai "E" vienpadsmitnieka apzīmēšanai. Skaitlis divpadsmit (tas, kas tiek rakstīts kā "12" decimālajā sistēmā) duodecimālajā sistēmā tiek pierakstīts kā "10" (apzīmējot "1 duci un 0 vienības", nevis "1 desmits un 0 vienības"), bet ciparu virkne "12" apzīmē "1 duci un 2 vienības" (t.i. tas pats skaitlis, ko decimālajā sistēmā raksta kā "14"). Līdzīgi duodecimālais "100" nozīmē "1 mazais gross",[4] "1000" nozīmē "1 lielais gross"[4] un "0,1" nozīmē "1 divpadsmitā" (decimālo apzīmējumu "1 simts", "1 tūkstotis" un "desmitdaļa").
Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
100,000 | 248,832 | 10,000 | 20,736 | 1,000 | 1,728 | 100 | 144 | 10 | 12 | 1 | 1 | 0.1 | 0.083 | 0.01 | 0.00694 |
200,000 | 497,664 | 20,000 | 41,472 | 2,000 | 3,456 | 200 | 288 | 20 | 24 | 2 | 2 | 0.2 | 0.16 | 0.02 | 0.0138 |
300,000 | 746,496 | 30,000 | 62,208 | 3,000 | 5,184 | 300 | 432 | 30 | 36 | 3 | 3 | 0.3 | 0.25 | 0.03 | 0.02083 |
400,000 | 995,328 | 40,000 | 82,944 | 4,000 | 6,912 | 400 | 576 | 40 | 48 | 4 | 4 | 0.4 | 0.3 | 0.04 | 0.027 |
500,000 | 1,244,160 | 50,000 | 103,680 | 5,000 | 8,640 | 500 | 720 | 50 | 60 | 5 | 5 | 0.5 | 0.416 | 0.05 | 0.03472 |
600,000 | 1,492,992 | 60,000 | 124,416 | 6,000 | 10,368 | 600 | 864 | 60 | 72 | 6 | 6 | 0.6 | 0.5 | 0.06 | 0.0416 |
700,000 | 1,741,824 | 70,000 | 145,152 | 7,000 | 12,096 | 700 | 1008 | 70 | 84 | 7 | 7 | 0.7 | 0.583 | 0.07 | 0.04861 |
800,000 | 1,990,656 | 80,000 | 165,888 | 8,000 | 13,824 | 800 | 1152 | 80 | 96 | 8 | 8 | 0.8 | 0.6 | 0.08 | 0.05 |
900,000 | 2,239,488 | 90,000 | 186,624 | 9,000 | 15,552 | 900 | 1,296 | 90 | 108 | 9 | 9 | 0.9 | 0.75 | 0.09 | 0.0625 |
ᘔ00,000 | 2,488,320 | ᘔ0,000 | 207,360 | ᘔ,000 | 17,280 | ᘔ00 | 1,440 | ᘔ0 | 120 | ᘔ | 10 | 0.ᘔ | 0.83 | 0.0ᘔ | 0.0694 |
Ɛ00,000 | 2,737,152 | Ɛ0,000 | 228,096 | Ɛ,000 | 19,008 | Ɛ00 | 1,584 | Ɛ0 | 132 | Ɛ | 11 | 0.Ɛ | 0.916 | 0.0Ɛ | 0.07638 |
Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
100,000 | 49,ᘔ54 | 10,000 | 5,954 | 1,000 | 6Ɛ4 | 100 | 84 | 10 | ᘔ | 1 | 1 | 0.1 | 0.12497 | 0.01 | 0.015343ᘔ0Ɛ62ᘔ68781Ɛ059 |
200,000 | 97,8ᘔ8 | 20,000 | Ɛ,6ᘔ8 | 2,000 | 1,1ᘔ8 | 200 | 148 | 20 | 18 | 2 | 2 | 0.2 | 0.2497 | 0.02 | 0.02ᘔ68781Ɛ05915343ᘔ0Ɛ6 |
300,000 | 125,740 | 30,000 | 15,440 | 3,000 | 1,8ᘔ0 | 300 | 210 | 30 | 26 | 3 | 3 | 0.3 | 0.37249 | 0.03 | 0.043ᘔ0Ɛ62ᘔ68781Ɛ059153 |
400,000 | 173,594 | 40,000 | 1Ɛ,194 | 4,000 | 2,394 | 400 | 294 | 40 | 34 | 4 | 4 | 0.4 | 0.4972 | 0.04 | 0.05915343ᘔ0Ɛ62ᘔ68781Ɛ |
500,000 | 201,428 | 50,000 | 24,Ɛ28 | 5,000 | 2,ᘔ88 | 500 | 358 | 50 | 42 | 5 | 5 | 0.5 | 0.6 | 0.05 | 0.07249 |
600,000 | 24Ɛ,280 | 60,000 | 2ᘔ,880 | 6,000 | 3,580 | 600 | 420 | 60 | 50 | 6 | 6 | 0.6 | 0.7249 | 0.06 | 0.08781Ɛ05915343ᘔ0Ɛ62ᘔ6 |
700,000 | 299,114 | 70,000 | 34,614 | 7,000 | 4,074 | 700 | 4ᘔ4 | 70 | 5ᘔ | 7 | 7 | 0.7 | 0.84972 | 0.07 | 0.0ᘔ0Ɛ62ᘔ68781Ɛ05915343 |
800,000 | 326,Ɛ68 | 80,000 | 3ᘔ,368 | 8,000 | 4,768 | 800 | 568 | 80 | 68 | 8 | 8 | 0.8 | 0.9724 | 0.08 | 0.0Ɛ62ᘔ68781Ɛ05915343ᘔ |
900,000 | 374,ᘔ00 | 90,000 | 44,100 | 9,000 | 5,260 | 900 | 630 | 90 | 76 | 9 | 9 | 0.9 | 0.ᘔ9724 | 0.09 | 0.10Ɛ62ᘔ68781Ɛ05915343ᘔ |
Pakāpe | b=2 | b=3 | b=4 | b=5 | b=6 | b=7 | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | |
b6 | 64 | 54 | 729 | 509 | 4,096 | 2454 | 15,625 | 9,061 | 46,656 | 23,000 | 117,649 | 58,101 |
b5 | 32 | 28 | 243 | 183 | 1,024 | 714 | 3,125 | 1,985 | 7,776 | 4,600 | 16,807 | 9,887 |
b4 | 16 | 14 | 81 | 69 | 256 | 194 | 625 | 441 | 1,296 | 900 | 2,401 | 1,481 |
b3 | 8 | 8 | 27 | 23 | 64 | 54 | 125 | ᘔ5 | 216 | 160 | 343 | 247 |
b2 | 4 | 4 | 9 | 9 | 16 | 14 | 25 | 21 | 36 | 30 | 49 | 41 |
b1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 |
b−1 | 0.5 | 0.6 | 0.3 | 0.4 | 0.25 | 0.3 | 0.2 | 0.2497 | 0.16 | 0.2 | 0.142857 | 0.186ᘔ35 |
b−2 | 0.25 | 0.3 | 0.1 | 0.14 | 0.0625 | 0.09 | 0.04 | 0.05915343ᘔ0 Ɛ62ᘔ68781Ɛ |
0.027 | 0.04 | 0.0204081632653 06122448979591 836734693877551 |
0.02Ɛ322547ᘔ05ᘔ 644ᘔ9380Ɛ908996 741Ɛ615771283Ɛ |
Pakāpe | b=8 | b=9 | b=10 | b=11 | b=12 | |||||
---|---|---|---|---|---|---|---|---|---|---|
Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | Dec. | Duod. | |
b6 | 262,144 | 107,854 | 531,441 | 217,669 | 1,000,000 | 402,854 | 1,771,561 | 715,261 | 2,985,984 | 1,000,000 |
b5 | 32,768 | 16,Ɛ68 | 59,049 | 2ᘔ,209 | 100,000 | 49,ᘔ54 | 161,051 | 79,24Ɛ | 248,832 | 100,000 |
b4 | 4,096 | 2,454 | 6,561 | 3,969 | 10,000 | 5,954 | 14,641 | 8,581 | 20,736 | 10,000 |
b3 | 512 | 368 | 729 | 509 | 1,000 | 6Ɛ4 | 1,331 | 92Ɛ | 1,728 | 1,000 |
b2 | 64 | 54 | 81 | 69 | 100 | 84 | 121 | ᘔ1 | 144 | 100 |
b1 | 8 | 8 | 9 | 9 | 10 | ᘔ | 11 | Ɛ | 12 | 10 |
b−1 | 0.125 | 0.16 | 0.1 | 0.14 | 0.1 | 0.12497 | 0.09 | 0.1 | 0.083 | 0.1 |
b−2 | 0.015625 | 0.023 | 0.012345679 | 0.0194 | 0.01 | 0.015343ᘔ0Ɛ6 2ᘔ68781Ɛ059 |
0.00826446280 99173553719 |
0.0123456789Ɛ | 0.00694 | 0.01 |
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.