PreviousPrime (Float function): Difference between revisions
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{{Template:Float:PreviousPrime subtitle}} | |||
This [[Intrinsic classes|intrinsic]] function returns the [http://en.wikipedia.org/wiki/Prime_number prime number] that immediately precedes the method | This [[Intrinsic classes|intrinsic]] function returns the [http://en.wikipedia.org/wiki/Prime_number prime number] that immediately precedes the method | ||
object value. | object value. | ||
The PreviousPrime function is available as of version 7.3 of the [[Sirius Mods]]. | The PreviousPrime function is available as of version 7.3 of the [[Sirius Mods]]. | ||
== | ==Syntax== | ||
{{Template:Float:PreviousPrime syntax}} | |||
===Syntax terms=== | |||
<dl> | <dl> | ||
<dt>%value | <dt>%value | ||
| Line 12: | Line 14: | ||
<dd>A Float value. | <dd>A Float value. | ||
</dl> | </dl> | ||
==Usage notes== | |||
*The method object value is initially rounded to the nearest integer before the preceding prime is determined. | *The method object value is initially rounded to the nearest integer before the preceding prime is determined. | ||
*If ''number'' rounds to 2 or less or is greater than 2<sup>31</sup>-1, the request is cancelled. | *If ''number'' rounds to 2 or less or is greater than 2<sup>31</sup>-1, the request is cancelled. | ||
*PreviousPrime always returns a value lower than the method object value, even if the method object value is prime. | *PreviousPrime always returns a value lower than the method object value, even if the method object value is prime. | ||
==Examples== | |||
The following statement returns | The following statement returns "''2.8:previousPrime = 2''". | ||
PrintText {~} = {2.8:previousPrime} | PrintText {~} = {2.8:previousPrime} | ||
Revision as of 13:42, 19 January 2011
Find greatest prime smaller than this number (Float class)
This intrinsic function returns the prime number that immediately precedes the method
object value.
The PreviousPrime function is available as of version 7.3 of the Sirius Mods.
Syntax
%number = float:PreviousPrime
Syntax terms
- %value
- A numeric variable to receive the method result.
- number
- A Float value.
Usage notes
- The method object value is initially rounded to the nearest integer before the preceding prime is determined.
- If number rounds to 2 or less or is greater than 231-1, the request is cancelled.
- PreviousPrime always returns a value lower than the method object value, even if the method object value is prime.
Examples
The following statement returns "2.8:previousPrime = 2".
PrintText {~} = {2.8:previousPrime}
See also
List of intrinsic Float methods