Astronomy question???????? ?

I really don't know if I'm asking correctly, or if there is much of a difference, but here's my question. When the sun rises and sets durring equinox, it rises and sets on the equator, which appears to be 180 degrees from each event. But if you are standing anywhere closer to the poles, the rise and set position changes. How can I calculate where the rise and set positions are, in relation to where I am in the world durring this time?