Permittivity Symbol εₓ - Hexagonal Notation in Electromagnetism #83118 (License: Personal Use)

This image displays the Greek letter epsilon subscript x (εₓ) centered inside a regular hexagon-a conventional schematic representation for the permittivity tensor component along the x-axis in anisotropic media. Widely adopted in electrical engineering and physics literature, it appears in diagrams of capacitors, wave propagation models, and material property tables. The clean black-and-white design ensures high legibility in technical documentation and simulation software interfaces.

Used in academic textbooks, research papers, circuit simulators (e.g., COMSOL, ANSYS), and educational slides to denote directional permittivity in dielectrics; targets students, engineers, and researchers seeking clarity on electromagnetic material properties.