“LlAcos”的版本间的差异
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| − | | | + | {{函数详情 |
| − | + | |函数名=Function: float llAcos( float val ); | |
| − | 无 | + | |参数= 参数：float val –must fall in the range [-1.0, 1.0] |
| − | + | |返回值= 返回值：Returns a float that is the arccosine in radians of val. | |
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| + | |注意事项=无 | ||
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| + | |示例= | ||
| + | 示例1 | ||
<pre> | <pre> | ||
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// This example exercises the full valid range of argument from -1.0 to +1.0 | // This example exercises the full valid range of argument from -1.0 to +1.0 | ||
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</pre> | </pre> | ||
| − | |相关函数 | + | |相关函数= |
| − | + | [[llSin]] [[llAsin]] –sine & inverse Sine | |
| − | + | [[llCos]] –cosine | |
| − | + | [[llTan]] [[llAtan2]] –tangent & inverse tangent | |
| + | }} | ||
2020年2月27日 (四) 07:32的版本
| 首页 | 函数 | 事件 | 类型 | 操作符 | 常数 | Flow Control | Script Library | Categorized Library | Tutorials |
| 函数名 |
|---|
| Function: float llAcos( float val ); |
| 参数：float val –must fall in the range [-1.0, 1.0] |
| 返回值：Returns a float that is the arccosine in radians of val. |
| 注意事项 |
|---|
| 无 |
| 示例 |
|---|
示例1
// This example exercises the full valid range of argument from -1.0 to +1.0
default
{
touch_start(integer num_detected)
{
float random = llFrand(2.0) - 1.0;
llOwnerSay("The arccosine of " + (string)random + " is " + (string)llAcos(random));
}
}
示例2 //An example for the Law of Cosines to calculate any angle of a triangle from 3 known side lengths.
default
{
touch_start(integer num_detected)
{
vector t=< llFrand(9.0)+1.0 , llFrand(9.0)+1.0 , llFrand(9.0)+1.0 >; //the 3 values of this vector are used to set the lengths of 3 sides of a triangle.
float anglexy=llAcos( (t.x*t.x+t.y*t.y-(t.z*t.z)) / ( 2*t.x*t.y) ) //Law Of Cosines
llOwnerSay("Using the Law Of Cosines, the angle of a triangle between side a="+(string)t.x+"and side b="+(string)t.y+"is = "+(string)anglexy+" radians="+(string)(anglexy*RAD_TO_DEG)+"° and that angle is not on side c="+(string)t.z);
}
}
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| 相关函数 |
|---|
| llSin llAsin –sine & inverse Sine |
| 相关事件 |
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| 无 |
