👉 precalculation is a method of calculation that involves performing calculations in reverse order, starting with the most fundamental values or quantities and working backwards to determine their values for a given problem. This process allows one to simplify calculations by breaking them down into simpler components, which can then be evaluated more quickly and accurately. For example, if you are calculating the area of a circle using precalculation, you would first find the radius of the circle (the distance from the center of the circle to any point