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| -rw-r--r-- | doc/src/sgml/func.sgml | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index 38350c1bd35..bf31ee53115 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -1,4 +1,4 @@ -<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.507 2010/03/03 22:28:42 momjian Exp $ --> +<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.508 2010/03/15 19:03:31 sriggs Exp $ --> <chapter id="functions"> <title>Functions and Operators</title> @@ -910,7 +910,11 @@ Finally, <xref linkend="functions-math-trig-table"> shows the available trigonometric functions. All trigonometric functions take arguments and return values of type <type>double - precision</type>. + precision</type>. Trigonometric functions arguments are expressed + in radians. Inverse functions return values are expressed in + radians. See unit transformation functions + <literal><function>radians</function>()</literal> and + <literal><function>degrees</function>()</literal> above. </para> <indexterm> @@ -941,7 +945,7 @@ <table id="functions-math-trig-table"> <title>Trigonometric Functions</title> - <tgroup cols="2"> + <tgroup cols="3"> <thead> <row> <entry>Function</entry> |