Basic Vectors

This example demonstrates the basic concepts and operations of vectors in a two-dimensional plane, including vector representation, addition and subtraction, and the calculation of vector magnitude. The core mathematical concepts involved are vectors, the difference and slope of vectors, differential calculus derivatives, expected value in probability and statistics, functions, and the application of vectors in function graphs. Construction highlights include using the Vector command to construct vector objects B, A, u, C, v, w, a, b, c. This example is suitable for high school and introductory university students learning vector basics, and can be used for classroom teaching or self-study.