👉 The term "postmeridional" refers to a mathematical concept in trigonometry, specifically related to the relationship between angles and their positions on a circle. In particular, it is used to describe how the position of an angle relative to its reference point (like the center or pole) changes when the angle rotates around that reference point. In simpler terms, if you have a circle with an angle labeled "A" at the center, and you rotate the circle about any point on the circumference
