Phasor Subtraction: Tip-to-Tail Method

①This GeoGebra example dynamically demonstrates the subtraction of two phasors (vectors) using the tip-to-tail geometric construction, visually showing the resultant vector of the subtraction. ②The core mathematical concept is two-dimensional vector subtraction, where subtracting vector b from vector a is equivalent to adding the opposite of b to a; the tip-to-tail method clarifies the direction and magnitude of the difference vector. ③Construction details: the example uses GeoGebra commands such as Intersect to find intersection points, Vector to create vectors u and v, and Translate to shift vectors for the tip-to-tail arrangement; objects include points A, B, C, vectors u, v, w, translated point B', and vector a, forming a complete subtraction diagram. ④This is suitable for high school or early college students learning vector operations, analytic geometry, or phasor analysis in physics, and also serves as a classroom demonstration tool for teachers to connect geometric intuition with algebraic computation.