代码编辑器：
x
1
2
echo sinh(3) , "<br>";3
echo sinh(-3) , "<br>";4
echo sinh(0) , "<br>";5
echo sinh(M_PI) , "<br>";6
echo sinh(M_PI_2);7
echo sinh(3) , "<br>";echo sinh(-3) , "<br>";echo sinh(0) , "<br>";echo sinh(M_PI) , "<br>";echo sinh(M_PI_2);