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PHP/Math/Math Functions - История изменений
2026-04-05T22:53:58Z
История изменений этой страницы в вики
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http://wbex.ru/index.php?title=PHP/Math/Math_Functions&diff=970&oldid=prev
в 10:37, 26 мая 2010
2010-05-26T10:37:31Z
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Admin: 1 версия
2010-05-26T07:06:04Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==Difference between ceil and floor==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
<br />
<?<br />
$my_double = 4.7;<br />
$my_int = ceil($my_double); <br />
echo($my_int);<br />
<br />
$my_double = -4.7;<br />
$my_int = floor($my_double);<br />
echo($my_int);<br />
<br />
?><br />
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</source><br />
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==Exp==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
<?<br />
$test_449 = 449.0;<br />
$test_449 = pow(10, exp(log(log10($test_449))));<br />
print("test_449 is $test_449<BR>");<br />
?> <br />
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</source><br />
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==Floor in action==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
<?<br />
$my_int = floor(4.7); <br />
echo($my_int);<br />
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$my_int = floor(-4.7); <br />
echo($my_int);<br />
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?><br />
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</source><br />
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==Get the Power==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
<?<br />
echo pow(19, 5);<br />
?><br />
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</source><br />
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==rand demo==<br />
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<source lang="html4strict"><br />
<?<br />
echo rand(0,576);<br />
?><br />
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</source><br />
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==Round in action==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
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<?<br />
$my_int = round(4.7); <br />
echo($my_int);<br />
$my_int = round(-4.7);<br />
echo($my_int);<br />
$my_int = round(-4.5);<br />
echo($my_int);<br />
?><br />
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</source><br />
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==Using the arbitrary-precision functions for exact integer arithmetic==<br />
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<!-- start source code --><br />
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<source lang="html4strict"><br />
<?<br />
for ($x = 1; $x < 25; $x++) {<br />
print("$x to the $x power is " . bcpow($x, $x) . "<BR>");<br />
}<br />
?><br />
<br />
</source></div>
Admin