ʻO ka moʻo EC680 he hanauna hou o ka hoʻololi ʻano vector ʻano kiʻekiʻe.Hoʻohana kēia ʻano i ka ʻenehana mana vector kiʻekiʻe loa, ka hana paʻa, ka pololei kiʻekiʻe, ka hilinaʻi maikaʻi,kekahiHiki i nā ʻāpana like ʻole ke hoʻololi i nā kaʻa like ʻole a me nā pono ʻoihana.