from mysql 5.1, 5.5, 5.6, 5.7 manual http://dev.mysql.com/doc/refman/5.1/en/mathematical-functions.html#function_cot http://dev.mysql.com/doc/refman/5.5/en/mathematical-functions.html#function_cot http://dev.mysql.com/doc/refman/5.6/en/mathematical-functions.html#function_cot http://dev.mysql.com/doc/refman/5.7/en/mathematical-functions.html#function_cot * *
-
COT(*X*)<http://dev.mysql.com/doc/refman/5.1/en/mathematical-functions.html#function_cot>
Returns the cotangent of *X*.
mysql> *SELECT COT(12);*
-> -1.5726734063977
mysql> *SELECT COT(0);*
-> NULL
maybe a sql_mode parameter change the output of this function?
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