Open Zhaojiah opened 4 years ago
word版笔记54页,html版week2,4.7正规方程及不可逆性中=1/2 (θ^T X^T Xθ-θ^T X^T y-y^T Xθ-y^T y)应为=1/2 (θ^T X^T Xθ-θ^T X^T y-y^T Xθ+y^T y)
word版笔记54页,html版week2,4.7正规方程及不可逆性中=1/2 (θ^T X^T Xθ-θ^T X^T y-y^T Xθ-y^T y)应为=1/2 (θ^T X^T Xθ-θ^T X^T y-y^T Xθ+y^T y) 复议:负负得正.y^T y前应为正号.
word版笔记54页,html版week2,4.7正规方程及不可逆性中=1/2 (θ^T X^T Xθ-θ^T X^T y-y^T Xθ-y^T y)应为=1/2 (θ^T X^T Xθ-θ^T X^T y-y^T Xθ+y^T y)