Koordinat kutub titik P (akar 3, 3) adalah

r^2 = (akar3)^2 + 3^2 = 3+9 = 12
r = akar12
r = 2akar3

tan@ = y/x = 3/akar3 = 1/3 akar3 = tan30°
@ = 30°

koordinat kutub = (2akar3 , 30°)