WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0

Return sine of a radian angle

radian_angle: Angle in radians

Sine of angle

<? 
$pi=3.14159;
print(sin($pi/2)); //result is 1
print(sin($pi)); //result is 0
?>

cos() - Return cosine of a radian angle