Kwintsimi yemathematics, Amanani edesimali ayabonwa njengala:
- Inxalenye epheleleyo, kunye
- Inxalenye yedesimaliyahlukile ku-0
Ngamanye amagama, abakwazi ukubhala yonke.
Inkqubo ye- amanani edesimali Kunzima ngakumbi ukucinga nokuma ngengqondo, kwaye ngokubanzi ekuphela kwento eyamkelweyo ukuba ithathe ingcinga yokuba ziyintoni na zona, kukuzilinganisa njengamaqhezu, oko kukuthi, njengeeyunithi ezipheleleyo ezahluliweyo. Nangona kunjalo, kunokubonwa ngokwandiswa ukuba ayizizo zonke iinombolo zokugqibela ezinakho ukubonakaliswa njengeqhezu.
Inkqubo ye- amanani edesimali Yenza elinye lawona maqela makhulu kwicandelo lokwabiwa kwamanani, phantse onke angawabandakanyi amanani apheleleyo kunye nolwahlulo olunokwenziwa kuphela phakathi kwabo: Ngaphakathi kweli qela, umzekelo, kubonakala oku kulandelayo:
- Amanani edesimali ngqo (ezo zinenani elipheleleyo leendawo zokugqibela).
- Amanani aphindaphindwayo wokugqibela (Ezo zinenani elingenasiphelo, kuba zivela kwisahlulo esikhokelela kwinani lokugqibela elingenasiphelo, njenge-1/3).
Ngenye indlela, ukwahlula phakathi kweedesimali kubonakala isengqiqweni (ezo zinokuboniswa njengeqhezu) kunye engenangqondo (Ezo zingenakubonakaliswa ngoluhlobo, kwaye zinamanani angenasiphelo angafakwangaxesha, anje ngenani elidumileyo le-pi okanye ingcambu ka-2).
Inkqubo ye- indlela yokubonisa amanani edesimaliKwimeko apho ufuna ukubonisa inani kwaye hayi iqhezu, kukubeka inani elipheleleyo ngasekhohlo, kwaye emva kwenqaku amanani edesimali ngendlela elungeleleneyo ngokungathi linani elitsha.
Oku kunokubalula, kuba ngokungafaniyo nenani elipheleleyo apho ukungathathi cala kwe-0 ngasekhohlo, kwisigqibo sokungathathi cala kwe-0 ngasekunene kucingelwa: 0.4 ilingana no-0.40 kunye no-0.400, kwaye ngokuqinisekileyo ingaphezulu kwe-0.39 kunye ne-0.399. Ukuba ufuna ukucacisa ubungakanani benani, uphawu kufuneka lubekwe ngaphezulu okanye amanani afuna ukuboniswa njengamaxesha, isenokungabi sisiphelo seendawo zokugqibela.
Olu luhlu lulandelayo lubandakanya imizekelo engamashumi amabini yamanani edesimali, ahamba kunye neqhezu elingenakulungiswa elibonisa ukuba banalo.
- 3 (3/10)
- 9 (19/10)
- 1 (1001/10)
- Π (inombolo yepi), 3.1415926535…. (ayicaciswa njengeqhekeza)
- 8 (14/5)
- 33 (33/100)
- 75 (883/4)
- 7 (37/10)
- 416666666666666666666 (ukuya kwi-infinity) (101/12)
- 5 (3/2)
- 1 (71/100)
- Φ (inombolo yegolide), (1 + 5 ^ (1/2)) / 2 (ayicaciswa njengeqhekeza ngokwalo, kuba ingcambu yesi-5 nayo ayinangqondo)
- 25 (217/4)
- 333333333333333 (ukuya kwi-infinity) (4/3)
- 4 (22/50)
- 9 (59/100)
- 25 (5/4)
- 88888888888888 (ukuya kubomi obungaphantsi) (71/9)
- 25 (13/4)
- 2 ^ (1/2) (ayinakuchazwa njengeqhezu)
