Multivariate Calculus and Optimization · 免费预览

向量值函数的梯度

向量值函数的梯度

1. Gradients of Vector-Valued Functions

Gradients of Vector-Valued Functions

2. Quick check: Jacobian of a vector-valued function

For f:Rn→Rmf: \mathbb{R}^n \to \mathbb{R}^m, the Jacobian JJ has shape

3. Gradients of Vector-Valued Functions (2)

Gradients of Vector-Valued Functions (2)

4. Gradients of Vector-Valued Functions (3)

Gradients of Vector-Valued Functions (3)

5. Gradients of Vector-Valued Functions (4)

Gradients of Vector-Valued Functions (4)

6. Gradients of Vector-Valued Functions (5)

Gradients of Vector-Valued Functions (5)

7. Gradients of Vector-Valued Functions (6)

Gradients of Vector-Valued Functions (6)

8. Gradients of Vector-Valued Functions (7)

Gradients of Vector-Valued Functions (7)

9. Gradients of Vector-Valued Functions (8)

Gradients of Vector-Valued Functions (8)

10. Gradients of Vector-Valued Functions (9)

Gradients of Vector-Valued Functions (9)

11. Gradients of Vector-Valued Functions (10)

Gradients of Vector-Valued Functions (10)

12. Gradients of Vector-Valued Functions (11)

Gradients of Vector-Valued Functions (11)

13. Chain rule for composed maps

For h(x)=g(f(x))h(x) = g(f(x)), the Jacobian of hh is

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