Bivectors are mathematical entities used to represent quantities with both magnitude and direction in a plane, particularly in the context of electromagnetic stress and pressure. They are essential for understanding the behavior of electromagnetic fields, as they can encapsulate the effects of forces acting in multiple dimensions. Bivectors are closely related to tensors, which generalize the concept of vectors to higher dimensions and can describe more complex interactions. The connection lies in how bivectors can be represented as specific types of tensors, facilitating the analysis of physical phenomena. Understanding bivectors and their relationship to tensors is crucial for grasping advanced concepts in electromagnetism and continuum mechanics.