Official Answer
Answer
Niba urukuta rwa groove rutari kare ($> 0.5 ^ {\ umuzenguruko} $ bivuye kuri perpendicularity), umutwaro wo gusunika $ P $ ntabwo ukoreshwa kimwe. Ibi birema igice cyingufu $ P \ cdot icyaha (\ theta) $ ikora muburyo bwuzuye, ishishikariza impeta kwaguka no gusohoka muri ruhago. Mugihe cyo gukemura ibibazo aho impeta isa nkaho 'yasohotse', geometrie ya groove igomba gupimwa hakoreshejwe CMM (Imashini yo gupima imashini). Ikibanza kitari kare kigabanya cyane ubushobozi bwo gutera imbaraga, akenshi ku $ 50 \% $, kubera ko impeta ihuza gusa 'hejuru cyane' ya ruhago, biganisha ku musaruro waho ndetse no kuroba nyuma.
