Linear algebra essentials

Từ vựng

English	Ý nghĩa
determinant/dɪˈtɜːmɪnənt/	determinant
linear system/ˈlɪnɪə ˈsɪstəm/	linear system
singular/ˈsɪŋɡjʊlə/	singular

English

Elimination and the determinant

A linear system 线性方程组 solves by elimination; the inverse route verifies it. $det = 0$ means singular 奇异 — no unique solution, a floating node in circuit terms.
Nodal analysis IS Ax = b: the determinant is a circuit-debugging tool.

{exercise:uni-ee2x-linear}