ASEC _ _ _ _ _ _ _ _ _ _ _ _ operator

The asec operator returns the arccosecant 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:

asec(ab); 

  ASEC(AB) 


asec 15; 

  ASEC(15) 


df(asec(x*y),x); 

        2  2
  SQRT(X *Y  - 1)
  --------------- 
       2  2
   X*(X *Y  - 1)


on rounded; 

res := asec sqrt(2); 

  RES := 0.785398163397 


res-pi/4; 

  0

An explicit numeric value is not given unless the switch round ed is on and the argument has an absolute numeric value greater or equal to 1.