What are isogonic, isoclinic and isodynamic lines?

What are isodynamic, isogonic and agonic lines?

Define Isodynamic lines.

Explain isoclinic and aclinic lines.

Explain isogonic and agonic lines.

What do you know about the following terms ? a. Isogonic line and Agonic line b. Isolinic line and Aclinic line c. Isodynamic line

What are stokes lines ?