Gilbert Strang,MIT 数学系教授。从 UCLA 博士毕业后一直在 MIT 任教,教授的课程有“数据分析的矩阵方法”、“线性代数”、“计算机科学与工程”等,出版的图书有 Linear Algebra and Learning from Data、Introduction to Linear Algebra、Differential Equations and Linear Algebra。
AI导读
核心看点
摒弃行列式开篇,从向量空间视角重构线性代数认知
深入讲解四大基本子空间,揭示矩阵的几何本质
结合微积分与傅里叶变换,展现线性代数的广泛应用
读者共识
彻底颠覆传统认知,让线性代数变得直观且充满美感
虽标题为导论,但内容深度足以夯实超越本科的基础
被誉工科神书,但自学难度较大,需配合课程视频
精彩摘录
"we needed to open linear algebra to the world"
"Let me connect these special matrices A and S to calculus. The vector x changes to a function x(t). The differences Ax become the derivative dx/ dt = bet). In the inverse direction, the sum Sb becomes the integral of bet)."
"When E multiplies on the right, it acts on the columns of A."
"Schur complement."
"To solve A x = b without A-I, we deal with one column b to find one column x."
"Suppose there is a nonzero vector x such that Ax = 0"
"A triangular matrix is invertible if and only if no diagonal entries are zero."
"The column space C (U) consists of all vectors of the form (b I , b2 , b3 , 0)."