Geometric Construction of Complex Number Subtraction

This GeoGebra example demonstrates the geometric interpretation of complex number subtraction on the complex plane. It visually represents the difference between two complex numbers as a vector connecting their corresponding points, linking algebraic operations with geometric intuition. Core mathematical concepts include complex arithmetic, complex plane geometry, vector subtraction, and the relationship between points and segments. The construction utilizes GeoGebra commands such as ComplexVector to generate complex vectors, ComplexAddition for complex addition operations, and Segment to draw connecting line segments, with objects including z_2, u, z_1, v, C_1, w, C, z, a, and b. This resource is suitable for high school elective mathematics or introductory university complex analysis courses, supporting classroom demonstrations and independent inquiry into the geometric meaning of complex subtraction.