select cs_sqrt((Open - Close) ^ 2.0) from Quote_get('IBM');
                                      cs_sqrt                                       
------------------------------------------------------------------------------------
 float8:{0.300000190734863,0,0.299999237060547,0.299999237060547,0.299999237060547}
(1 row)

select cs_sin(Open)*cs_sin(Open) + cs_cos(Open)*cs_cos(Open) from Quote_get('IBM');
      ?column?      
--------------------
 float8:{1,1,1,1,1}
(1 row)

select cs_atan(cs_tan(Close)) from Quote_get('IBM');
                                              cs_atan                                              
---------------------------------------------------------------------------------------------------
 float8:{1.07522203923062,1.35044484140069,-1.21592577295848,-0.640703733727859,0.234517542563308}
(1 row)

select cs_asin(cs_sin(Close)) from Quote_get('IBM');
                                              cs_asin                                              
---------------------------------------------------------------------------------------------------
 float8:{-1.07522203923062,1.35044484140069,-1.21592577295848,0.640703733727859,0.234517542563308}
(1 row)

select cs_acos(cs_cos(Close)) from Quote_get('IBM');
                                            cs_acos                                             
------------------------------------------------------------------------------------------------
 float8:{2.06637061435917,1.35044484140069,1.21592577295848,2.50088891986193,0.234517542563308}
(1 row)

select cs_log(cs_exp(Close/Open)) - Open/Close from Quote_get('IBM');
                                         ?column?                                         
------------------------------------------------------------------------------------------
 float8:{0.0579832196235657,0,-0.0197697281837463,-0.0148699879646301,0.0119166374206543}
(1 row)

select cs_isnan(cs_parse('{-1,0,1}','float8')/0.0);
   cs_isnan   
--------------
 char:{0,1,0}
(1 row)