“LlAcos”的版本间的差异
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{{函数详情 | {{函数详情 | ||
− | |函数名=Function: float llAcos( float val ); | + | |函数名 = Function: float llAcos( float val ); |
|参数= 参数:float val –must fall in the range [-1.0, 1.0] | |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. | |返回值= 返回值:Returns a float that is the arccosine in radians of val. |
2020年4月6日 (一) 12:34的版本
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函数名 |
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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 |
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无 |
示例 |
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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); } } |
相关函数 |
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llSin llAsin –sine & inverse Sine |
相关事件 |
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无 |