PHP/Math/asin
float asin ( float num ) calculates the arc sine value
<source lang="html4strict">
<?
$asin1 = asin(0.4346); $asin2 = asin(sin(80));
?>
</source>
<source lang="html4strict">
<?
$asin1 = asin(0.4346); $asin2 = asin(sin(80));
?>
</source>