diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/func.sgml | 107 |
1 files changed, 105 insertions, 2 deletions
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml index afd1c433b4d..ca3aedc3306 100644 --- a/doc/src/sgml/func.sgml +++ b/doc/src/sgml/func.sgml @@ -897,6 +897,19 @@ </row> <row> + <entry> + <indexterm> + <primary>log10</primary> + </indexterm> + <literal><function>log10(<type>dp</type> or <type>numeric</type>)</function></literal> + </entry> + <entry>(same as input)</entry> + <entry>base 10 logarithm</entry> + <entry><literal>log10(100.0)</literal></entry> + <entry><literal>2</literal></entry> + </row> + + <row> <entry><literal><function>log(<parameter>b</parameter> <type>numeric</type>, <parameter>x</parameter> <type>numeric</type>)</function></literal></entry> <entry><type>numeric</type></entry> @@ -1147,8 +1160,8 @@ </para> <para> - Finally, <xref linkend="functions-math-trig-table"/> shows the - available trigonometric functions. All trigonometric functions + <xref linkend="functions-math-trig-table"/> shows the + available trigonometric functions. All these functions take arguments and return values of type <type>double precision</type>. Each of the trigonometric functions comes in two variants, one that measures angles in radians and one that @@ -1311,6 +1324,96 @@ </para> </note> + <para> + <xref linkend="functions-math-hyp-table"/> shows the + available hyperbolic functions. All these functions + take arguments and return values of type <type>double + precision</type>. + </para> + + <table id="functions-math-hyp-table"> + <title>Hyperbolic Functions</title> + + <tgroup cols="4"> + <thead> + <row> + <entry>Function</entry> + <entry>Description</entry> + <entry>Example</entry> + <entry>Result</entry> + </row> + </thead> + <tbody> + <row> + <entry> + <indexterm> + <primary>sinh</primary> + </indexterm> + <literal><function>sinh(<replaceable>x</replaceable>)</function></literal> + </entry> + <entry>hyperbolic sine</entry> + <entry><literal>sinh(0)</literal></entry> + <entry><literal>0</literal></entry> + </row> + <row> + <entry> + <indexterm> + <primary>cosh</primary> + </indexterm> + <literal><function>cosh(<replaceable>x</replaceable>)</function></literal> + </entry> + <entry>hyperbolic cosine</entry> + <entry><literal>cosh(0)</literal></entry> + <entry><literal>1</literal></entry> + </row> + <row> + <entry> + <indexterm> + <primary>tanh</primary> + </indexterm> + <literal><function>tanh(<replaceable>x</replaceable>)</function></literal> + </entry> + <entry>hyperbolic tangent</entry> + <entry><literal>tanh(0)</literal></entry> + <entry><literal>0</literal></entry> + </row> + <row> + <entry> + <indexterm> + <primary>asinh</primary> + </indexterm> + <literal><function>asinh(<replaceable>x</replaceable>)</function></literal> + </entry> + <entry>inverse hyperbolic sine</entry> + <entry><literal>asinh(0)</literal></entry> + <entry><literal>0</literal></entry> + </row> + <row> + <entry> + <indexterm> + <primary>acosh</primary> + </indexterm> + <literal><function>acosh(<replaceable>x</replaceable>)</function></literal> + </entry> + <entry>inverse hyperbolic cosine</entry> + <entry><literal>acosh(1)</literal></entry> + <entry><literal>0</literal></entry> + </row> + <row> + <entry> + <indexterm> + <primary>atanh</primary> + </indexterm> + <literal><function>atanh(<replaceable>x</replaceable>)</function></literal> + </entry> + <entry>inverse hyperbolic tangent</entry> + <entry><literal>atanh(0)</literal></entry> + <entry><literal>0</literal></entry> + </row> + </tbody> + </tgroup> + </table> + </sect1> |