Phasor Addition of Waveforms by sian.mat

① This example demonstrates the phasor (vector) addition of several sinusoidal waveforms, showing the resulting amplitude and phase graphically. ② Core mathematical concepts include vector addition, trigonometric representation of sinusoids, complex‑number/phasor modeling, and the geometric meaning of magnitude and phase angle. ③ Construction highlights: GeoGebra commands Line, Intersect, and Vector create reference lines, intersection points, and phasor vectors; objects r, n, a, f, R, N, A, g, θ, B, C, h, D, u, E, F, v, w, result, G, i, b, j, l, c, d represent individual phasors, angles, intermediate points, and the final resultant vector. ④ Suitable for high‑school physics/math electives, introductory university signals and systems courses, and as an interactive teaching aid for phasor analysis.