Digiri (kwana)

Digiri (kwana)

Gegree radian

A cikin lissafi, digiri hanya ce ta gama gari don auna kan kusurwa ko kwana . An rubuta shi da alamar ${\circ }^{}$, ku $360^{\circ }$ yayi daidai da dukan da'irar.

Ba naúrar SI ba ce. SI yana amfani da radian don auna kusurwar jirgin sama . Koyaya, bisa ga kasidar SI, raka'a ce ta SI.

Tarihi

Ba a san ainihin dalilin zabar digiri a matsayin hanyar auna kusurwar jirgin sama ba. Wata ka’ida ta ce tana da alaƙa da cewa shekara tana kusan kwanaki 360. Wasu tsoffin kalanda s, misali kalandar Farisa da kalandar Babila sun yi amfani da kwanaki 360 na shekara guda.

Wata ka'idar ta ce Babila sun raba da'irar ta amfani da kusurwar alwatika mai ma'ana . Daga nan aka raba kusurwa zuwa sassa 60. Wannan saboda sun yi amfani da tsarin lamba -60 na sexagesimal ko tushe-60.

Shafukan da ke da alaƙa

• Digiri na polynomial