计算x/y
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| Language | PHP |
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| Snippet Metadata | |
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| Owner | Zjmainstay |
| Created | |
| Modified | |
| Visibility | Public |
<?php
for($i = 7; $i <= 10; $i ++) {
for($j = 0; $j < 100; $j++) {
$y = "{$i}.{$j}";
$x = (44655.42 - 1597.2 * $y)/192;
if(preg_match('#^\d+\.\d{2}$#', (string)$x)) {
echo "x:{$x} y:{$y}\n";
}
}
}
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