Legacy Document

/

You can use the / symbol to divide one real number by another.

x / y

x

Any floating-point number.

y

Any floating-point number.

DESCRIPTION

The / operator performs the standard division of two floating-point numbers.

EXCEPTIONS

When x and y are both finite and nonzero, either the result of $x/y$ is exact or it raises one of the following exceptions:

• inexact (if the result must be rounded or if an overflow or underflow occurs)
• overflow (if the result is outside the range of the data type)
• underflow (if the result is inexact and must be represented as a denormalized number or 0)

SPECIAL CASES

Table 6-6 shows the results when one of the operands of the division operation is a zero, a NaN, or an Infinity. In this table, x is any floating-point number.

Table 6-6 Special cases for floating-point division

Operation	Result	Exceptions raised
$(+0)/x$	\xB10	None
$x/(+0)$	\xB1	Divide-by-zero
$(-0)/x$	\xB10	None
$x/(-0)$	\xB1	Divide-by-zero
$\backslash xB10/\backslash xB10$	NaN	Invalid
$x/NaN$	NaN	None[8]
$NaN/x$	NaN	None[8]
$x/(+$ )	\xB10	None
$(+$ )/x	\xB1	None
x / $(-$ )	\xB10	None
$(-$ )/x	\xB1	None
$(\pm$ )/(± )	NaN	Invalid

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[8] If the NaN is a signaling NaN, the invalid exception is raised.