Qivitoorneq imaluunniit pingasut
A(3,1) B(5,3)
Akilersorneq pillugu siunissami uani pissangaatitai kingorna, taamaaliornissamut piniartorsimaffik m, kingusinnermi A-mut B-mut. M piniartorfiit kingorna kingusinnermi siunissami uanitsoq, tamakkerlugu inunngornermi uanersortartoq kingusinnermi siunissamillu unannginnermi. Tamarmi, A(x1,y1)-mullu B(x2,y2)-mullu piniartorneq, m piniarneq:
 
m = (y2-y1) / (x2-x1)

Kingusinnermi inunngornermi uani, piniartorneq tamanna:
 
m = (3-1)/(5-3) = 2/2 = 1

M piniartorneq, θ ullormi A-mut B-mut piniartorneq, tamanna arctan piniarneq:
 
θ = arctan(m)

θ = arctan(1) = 45 degrees