Template:Needs Translation/
| 函数名
|
| Function: float llCos( float theta );
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| 参数： float theta – angle expressed in radians(以弧度表示的浮动θ角)
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| 返回值：返回一个浮点数，它是θ的余弦
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| 注意事项
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| 因为 iee754在 single floats 上，llcos (pi by two)返回-4.371139 e-8(hex: 0x33bbd2e)而不是0; llcos (pi / 3.0)返回0.49999997(hex: 0x3effff)而不是0
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| 示例
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// Touch the object with this script in it to see the cosine of random numbers!
default
{
touch_start(integer num)
{
float r = llFrand(TWO_PI);
llOwnerSay("The cosine of " + (string)r + " in radians or " + (string)(r * RAD_TO_DEG) + " in degrees is " + (string)llCos(r));
}
}
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