简单教程
提交运行
代码编辑器:
<?php echo tan(M_PI_4) , "<br>"; echo tan(0.50) , "<br>"; echo tan(-0.50) , "<br>"; echo tan(5) , "<br>"; echo tan(10) , "<br>"; echo tan(-5) , "<br>"; echo tan(-10);
运行结果: