Function: Asin
Description
Returns the arcsine, also known as inverse sine, value (in radians) of a given number.
Syntax
Asin(number)
Arguments
Number must be a => -1 and =< 1
Return value
This function returns a value in radians.
Calculated field example
Asin returns the following for these values of x:
| 
           x  | 
        
           asin(x)  | 
      
| 
           -1.000  | 
        
           -π/2 ≈ 1.571  | 
      
| 
           -√3/2 ≈ -0.866  | 
        
           -π/3 ≈ -1.047  | 
      
| 
           -√2/2 ≈ -0.707  | 
        
           -π/4 ≈ -0.785  | 
      
| 
           -1/2 ≈ -0.500  | 
        
           -π/6 ≈ -0.524  | 
      
| 
           0.000  | 
        
           0.000  | 
      
| 
           1/2 = 0.500  | 
        
           π/6 ≈ 0.524  | 
      
| 
           √2/2 ≈ 0.707  | 
        
           π/4 ≈ 0.785  | 
      
| 
           √3/2 ≈ 0.866  | 
        
           π/3 ≈ 1.047  | 
      
| 
           1.000  | 
        
           π/2 ≈ 1.571  | 
      
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