An expression is a sequence of constants and variables combined
by operators that produces a new value. The constants and variables are called
the operands of the operator. Many operators take one or two operands, where
other operators may take more. The construction of expression is recursive,
therefore an operand can be an expression itself. For example, in expression
a + b / c, the second operand of + is an expression b / c.
Subsections
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2009-12-22