(geometry, algebra) A Coxeter-Dynkin diagram.

(geometry) A projection of a polytope from n-dimensional space to n-1 dimensions through a point beyond one of its faces; especially such a projection (itself represented in 2 dimensions) of a 3- or 4-dimensional polytope.

A kind of diagram used to plot the positions of the poles and zeroes of a function in the complex plane.

(software engineering) A type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, and the relationships between the classes.

An existential diagram consisting of a Euler diagram or a Venn diagram annotated with logical operators.

Any of several diagrams that show the correspondence between multiple parameters / (genetics) A triangular diagram that shows the pairwise correlation of gene expression in a specific condition

(dated) pressure volume diagram

A diagram used in quality management to display a detailed list of causes and effects of a problem and thus to decipher the root cause of a problem.

An entity-relationship diagram; a specialized (usually dynamic) chart that illustrates the relationships between entities in a database, using a specific set of database-specific symbols.

A pictorial representation of a system or process in which subsystems or other components are represented by geometric shapes joined by lines or arrows