rational
Use numerator/denominator elements to express a fraction rather than using decimals; this increases the accuracy of arithmetic operations.
This type is similar to rate, but it is meant to be used in a general context.
Attributes
| Attribute | Data Type | Allowed Values | Occurrence | Description |
|---|---|---|---|---|
| type | string | rational |
0-1 | Type of the element. |
| version | unsigned integer | 7 |
0-1 | Version of the XML element. |
Note: Optional attributes (0 occurrence attributes) will be inferred from the parent node.
Children
The rational can be in either of these two mutually exclusive formats:
Rational format
| Element | Data Type | Occurrence | Description |
|---|---|---|---|
<numerator> |
64-bit integer | 1 | Upper portion of a rational number representing a fraction. |
<denominator> |
unsigned integer | 1 | Lower portion of a rational number representing a fraction. |
Decimal format
| Element | Data Type | Occurrence | Description |
|---|---|---|---|
| #cdata | 64-bit integer | 1 | Number representing the numerator of a fraction. 1 is assumed for the denominator. |
Examples
Example 1
The following expresses a ratio of 16:9:
<rational type="rational">
<numerator>16</numerator>
<denominator>9</denominator>
</rational>Example 2
Alternatively, an integer number can still be used for simplicity:
<rational type="rational">5</rational>