ASIN _ _ _ _ _ _ _ _ _ _ _ _ operator

The asin operator returns the arcsine of its argument.

syntax:

<expression> may be any scalar REDUCE expression, not an array, matrix or vector expression. <simple\_expression> must be a single identifier or begin with a prefix operator name.

examples:

asin(givenangle); 

  ASIN(GIVENANGLE) 


asin(5); 

  ASIN(5) 


df(asin(2*x),x); 

                 2
    2*SQRT( - 4*X  + 1))
  - -------------------- 
             2
          4*X  - 1


on rounded; 

asin .5; 

  0.523598775598 


asin(sqrt(3)); 

  ASIN(1.73205080757) 


asin(sqrt(3)/2); 

  1.04719755120 

A numeric value is not returned by asin unless the switch rounded is on and its argument has an absolute value less than or equal to 1.