<Li> West (W): 270 ° </Li> <P> The intercardinal, or intermediate, directions are the four intermediate compass directions located halfway between each pair of cardinal directions . </P> <Ul> <Li> Northeast (NE), 45 °, halfway between north and east, is the opposite of southwest . </Li> <Li> Southeast (SE), 135 °, halfway between south and east, is the opposite of northwest . </Li> <Li> Southwest (SW), 225 °, halfway between south and west, is the opposite of northeast . </Li> <Li> Northwest (NW), 315 °, halfway between north and west, is the opposite of southeast . </Li> </Ul> <Li> Northeast (NE), 45 °, halfway between north and east, is the opposite of southwest . </Li>

Where does north south east and west come from