How is the circle William classification indicated?

The circle William classification is indicated by a "W" with a circle around it. This notation is used primarily in engineering contexts to categorize and standardize certain parameters or features related to circular geometry and its applications, such as in structural design or analysis. The surrounding circle signifies the grouping or classification of elements that share specific characteristics or behaviors in relation to the circle.

This classification system helps in clear communication among engineers and designers by providing a visual representation that is easily recognized and understood within the field.