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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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23
Task/Averages-Mean-angle/PHP/averages-mean-angle.php Normal file
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<?php
$samples = array(
'1st' => array(350, 10),
'2nd' => array(90, 180, 270, 360),
'3rd' => array(10, 20, 30)
);
foreach($samples as $key => $sample){
echo 'Mean angle for ' . $key . ' sample: ' . meanAngle($sample) . ' degrees.' . PHP_EOL;
}
function meanAngle ($angles){
$y_part = $x_part = 0;
$size = count($angles);
for ($i = 0; $i < $size; $i++){
$x_part += cos(deg2rad($angles[$i]));
$y_part += sin(deg2rad($angles[$i]));
}
$x_part /= $size;
$y_part /= $size;
return rad2deg(atan2($y_part, $x_part));
}
?>