PreviousPrime (Float function): Difference between revisions
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{{Template:Float:PreviousPrime subtitle}} | {{Template:Float:PreviousPrime subtitle}} | ||
The <var>PreviousPrime</var> [[Intrinsic classes|intrinsic]] function returns the [http://en.wikipedia.org/wiki/Prime_number prime number] that immediately precedes the method object value. | |||
object value. | |||
==Syntax== | ==Syntax== | ||
{{Template:Float:PreviousPrime syntax}} | {{Template:Float:PreviousPrime syntax}} | ||
===Syntax terms=== | ===Syntax terms=== | ||
<table class="syntaxTable"> | <table class="syntaxTable"> | ||
<tr><th>% | <tr><th>%number</th> | ||
<td>A numeric variable to receive the method result. </td></tr> | <td>A numeric variable to receive the method result. </td></tr> | ||
<tr><th> | |||
<td>A Float value.</td></tr> | <tr><th>float</th> | ||
<td>A <var>Float</var> value.</td></tr> | |||
</table> | </table> | ||
==Usage notes== | ==Usage notes== | ||
<ul> | |||
<li>The method object value, <var class="term">float</var>, is initially rounded to the nearest integer before the preceding prime is determined. | |||
<li>If <var class="term">float</var> rounds to 2 or less or is greater than 2<sup>31</sup>-1, the request is cancelled. | |||
== | <li><var>PreviousPrime</var> always returns a value lower than the current <var class="term">float</var> value, even if <var class="term">float</var> is currently prime. | ||
<li><var>PreviousPrime</var> is available as of <var class="product">Sirius Mods</var> Version 7.3. | |||
</ul> | |||
==Examples== | |||
The following statement returns <code>2.8:previousPrime = 2</code>. | |||
<p class="code">[[PrintText statement|printText]] {~} = {2.8:previousPrime} | |||
</p> | |||
==See also== | |||
{{Template:Float:PreviousPrime footer}} | |||
Latest revision as of 18:05, 2 November 2012
Find greatest prime smaller than this number (Float class)
The PreviousPrime intrinsic function returns the prime number that immediately precedes the method object value.
Syntax
%number = float:PreviousPrime
Syntax terms
| %number | A numeric variable to receive the method result. |
|---|---|
| float | A Float value. |
Usage notes
- The method object value, float, is initially rounded to the nearest integer before the preceding prime is determined.
- If float rounds to 2 or less or is greater than 231-1, the request is cancelled.
- PreviousPrime always returns a value lower than the current float value, even if float is currently prime.
- PreviousPrime is available as of Sirius Mods Version 7.3.
Examples
The following statement returns 2.8:previousPrime = 2.
printText {~} = {2.8:previousPrime}