1. Computing

Definition of Expression

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Definition: An expression is a statement that has a value. In C, C++ and C# . An expression is always inside brackets like these examples.
 ( y > 4) 
 ( x== 8 and (c=='U') 
 ( c = 1) 
 

The last example isn't a mistake. It is an assignment statement, setting c to 1. The value of this statement is 1.

Glossary:

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Examples:
Don't forget that expressions must always be inside brackets.

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