Saving all output to "!!{outputDirectory}!!/udf_acos.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/udf_acos.q
>>>  DESCRIBE FUNCTION acos;
'tab_name'
'acos(x) - returns the arc cosine of x if -1<=x<=1 or NULL otherwise'
1 row selected 
>>>  DESCRIBE FUNCTION EXTENDED acos;
'tab_name'
'acos(x) - returns the arc cosine of x if -1<=x<=1 or NULL otherwise'
'Example:'
'  > SELECT acos(1) FROM src LIMIT 1;'
'  0'
'  > SELECT acos(2) FROM src LIMIT 1;'
'  NULL'
6 rows selected 
>>>  
>>>  SELECT acos(null) 
FROM src LIMIT 1;
'_c0'
''
1 row selected 
>>>  
>>>  SELECT acos(0) 
FROM src LIMIT 1;
'_c0'
'1.5707963267948966'
1 row selected 
>>>  
>>>  SELECT acos(-0.5), asin(0.66) 
FROM src LIMIT 1;
'_c0','_c1'
'2.0943951023931957','0.7208187608700897'
1 row selected 
>>>  
>>>  SELECT acos(2) 
FROM src LIMIT 1;
'_c0'
'NaN'
1 row selected 
>>>  !record