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Arithmetical and String Operators

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Arithmetical and string operators are used in forming expressions, see Expressions.

The operators are:

• unary arithmetical
• binary arithmetical
• string.

Unary Aritmetical

+	leaves operand unchanged
-	changes sign of operand

Binary Arithmetical

+	addition
-	subtraction
*	multiplication
/	division

String

||	concatenation

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