PHP fractions
This is a quickie test of my "random numbers to sorted legible fractions" widget.
Refreshing the page will show you what it does.
Sort of.
| 3 | @ | 1256 | - 5/16 |
| 2 | @ | 614 | |
| 1 | @ | 324 | - 3/16 |
| 1 | @ | 60 | - 11/16 |
| 2 | @ | 3 | - 1/8 |
| 1 | @ | 1 | - 7/16 |
| 1 | @ | 0 | - 1/16 |
Source for above:
<?php
$x=rand(0,130000)/10;
$y=rand(0,1200);
$z=rand(0,4)/64;
$array=array($x, $x, $x, $y, $y, $z, 324.19, 425/7, sqrt(2), pi(), pi());
function mult($n) { return intval(round($n*16)); }
function frac($num) { $mod=fmod($num,1)*16;
if (1 & $mod) { return " - ".$mod."/16"; }
else $mod=$mod/2;
if (1 & $mod) { return " - ".$mod."/8"; }
else $mod=$mod/2;
if (1 & $mod) { return " - ".$mod."/4"; }
else $mod=$mod/2;
if (1 & $mod) {return " - ".$mod."/2";}
}
echo '<table>';
$array = array_map("mult", $array);
$array = (array_filter($array, strval)); $array = (array_count_values ($array));
krsort ($array);
while (list ($key, $val) = each ($array)) {
$key = $key/16;
echo "<tr><td>$val</td><td> @ </td><td align=\"right\">"
.intval($key)." </td><td> ".frac($key)." </td></tr>";
}
echo '</table>';
?>
Posted by Hal Eckhart at March 20, 2000 06:56 AM
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