Izilinganiso noma izibalo ku-physics zisukela kosayizi bezinhlayiya ezincane kakhulu, njengobunzima be-electron, kuya kobukhulu obukhulu kakhulu, njengobunzima bomhlaba. Ukubhala imiphumela yezilinganiso zezinto ezinkulu kakhulu, isibonelo ubunzima bomhlaba bungaba ngu-6,000,000,000,000,000,000,000,000 kg noma imiphumela yezilinganiso zezinhlayiya ezincane kakhulu, isibonelo ubunzima be-electron bungaba ngu-0,000,000,000,000,000,000,000,000,000,000,000,000,000.911 kg idinga isikhala esikhulu futhi ivame ukubhalwa ngokungalungile. Ukuze sinqobe le nkinga, singasebenzisa i-notation yesayensi.
Ku-notation yesayensi, umphumela wokulinganisa uvezwa kanje: a, ….. x 10n
Imininingwane:
u-a uyinombolo yemvelo esukela ku-1 kuya ku-9
u-n ubizwa ngokuthi i-exponent futhi uyinombolo ephelele
10n i-oda lokubonisa
Imithetho yokubhala imiphumela yokulinganisa usebenzisa i-notation yesayensi
a) Ngezinombolo ezingaphezu kuka-10, hambisa iphuzu ledesimali ngakwesobunxele. I-exponent ilungile.
Isibonelo:
210000000 m = 2,1 x 108 m
62400,1 m = 6,24001 x 104 m = 6,2 x 104 m
33000 m = 3,3 x 104 m
b) Ngezinombolo ezingaphansi kuka-1, hambisa iphuzu ledesimali ngakwesokudla. I-exponent iyi-negative.
Isibonelo:
0,0045 m = 4,5 x 10-3 m
0,000000234 m = 2,34 x 10-7 m = 2,3 x 10-7 m
0,0001075 m = 1,075 x 10-4 m = 1,1 x 10-4 m
