<?php
header('Content-Type: text/html; charset=utf-8');
include './assets/php/head.php';
echo '30 度角的正弦值为：';
echo sin(deg2rad(30));
echo ' ';
echo sin(pi()/6);
echo '<br>';
echo '60 度角的正弦值为：';
echo sin(deg2rad(60));
echo ' ';
echo sin(pi()/3);
echo '<br>';
echo '90 度角的正弦值为：';
echo sin(deg2rad(90));
echo ' ';
echo sin(pi()/2);
echo '<br>';
echo '<br>';
echo '30 度角的余弦值为：';
echo cos(deg2rad(30));
echo ' ';
echo cos(pi()/6);
echo '<br>';
echo '60 度角的余弦值为：';
echo cos(deg2rad(60));
echo ' ';
echo cos(pi()/3);
echo '<br>';
echo '90 度角的余弦值为：';
echo cos(deg2rad(90));
echo ' ';
echo cos(pi()/2);
echo '<br>';
echo '<br>';
echo '30 度角的正切值为：';
echo tan(deg2rad(30));
echo ' ';
echo tan(pi()/6);
echo '<br>';
echo '60 度角的正切值为：';
echo tan(deg2rad(60));
echo ' ';
echo tan(pi()/3);
echo '<br>';
echo '90 度角的正切值为：';
echo tan(deg2rad(90));
echo ' ';
echo tan(pi()/2);
echo '<br>';
echo '<br>';
?>
<?php include './assets/php/foot.php'; ?>
效果图：
标签：deg2rad,度角,三角函数,值为,echo,nbsp,010001,pi From： https://www.cnblogs.com/onestopweb/p/16836618.html