Here is my medium article in which you could find the whole theoretical explanation: https://medium.com/@imen.benamor/deeper-dive-into-pca-mathematically-and-graphically-35cf60f40312
Here is my medium article in which you could find the whole theoretical explanation: https://medium.com/@imen.benamor/deeper-dive-into-pca-mathematically-and-graphically-35cf60f40312