What is meant by diagram?Explain the method of its Construction.

1.	What is meant by diagram?Explain the method of its Construction.
Answer» A diagram is a symbolic representation of information using visualization techniques. Diagrams have been used since ancient times on walls of caves , but became more prevalent during the Enlightenment.\xa0Sometimes, the technique uses a three-dimensional visualization which is then projected onto a two-dimensional surface. The word graph is sometimes used as a synonym for diagram.The term "diagram" in its commonly used sense can have a general or specific meaning:visual information device : Like the term "illustration", "diagram" is used as a collective term standing for the whole class of technical genres, including graphs, technical drawings and tables.

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