An expression that represents a numeric value is called an Arithmetic Expression. So, an arithmetic expression is one which is evaluated by performing a sequence of arithmetic operations to obtain a numeric value, which replaces the expression.

**Examples:**

3.14159

K

(A+B)*(C+D)

-1.0/X + Y/Z**2

2.0 * 3.14159*RADIUS

**Restrictions:**

Two operators cannot be written consecutively.

**Example:**

A*-B is illegal because (*) and (-) are two different operators. The second factor must be made into an expression by using

parentheses, viz: A*(-B).

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