Is PCA linear or nonlinear?

Related questions

1. What is pc1 in PCA?
2. What is PCA explained variance?
3. How does PCA reduced dimensionality?
4. Is PCA a linear model?
5. Why is PCA linear?
6. What is PCA infusion pump?
7. Is principal component analysis unsupervised?
8. What is PCA method?
9. What is PCA analysis used for?
10. Does PCA require normalization?

Tags

1. #original
2. #eigenvectors
3. #space
4. #mapping
5. #which
6. #dimensional
7. #method
8. #reduction
9. #linear
10. #kravitz
11. #pointed
12. #projected
13. #vector
14. #where
15. #transformation
16. #dimension
17. #length
18. #vectors
19. #points