A review of vector calculus that presents the geometrical meaning of all the operators and helps understand their connection to each other. See all videos in the series:

Playlist – https://www.youtube.com/playlist?list=PLmNMSMaNjnDdCM_6wCJGx_YaJDeAhy_yX

1. Gradient and lines – https://www.youtube.com/watch?v=TPhi6EpIpUI

2. Curl and surfaces – https://www.youtube.com/watch?v=BEsb3syQNtc

3. Divergence and volumes – https://www.youtube.com/watch?v=aNPNzqF9UiE